F. Arago

“ To merit the epithet of diffident, must we think ourselves beneath the competitors of whom we are at least the equals? Must we, in examining ourselves, fail in the tact, in the intelligence, in the judgment, that nature has awarded us, and of which we make so good a use in appreciating the works of others? Oh! then, few learned men can be said to be diffident. Look at Newton: his diffidence is almost as celebrated as his genius. ”

“ You will regret with me, Gentlemen, that a timidity, which circumstances would otherwise easily explain, should have prevented our colleague from at once emphatically protesting against this confusion, which the powerful of the earth are constantly endeavouring to establish between the perishable bounties of which they are the dispensers, and the noble fruits of thought. Fourier was Prefect and Baron by the favour of the Emperor; he was one of the glories of France by his own genius! ”

“ Well, Gentlemen, whenever this question may be put to me, I shall answer that Bailly and Franklin discussing together some scientific question from the moment of their meeting, would have appeared to me much more worthy of each other, than the two actors of the scene at Chaillot. I will, moreover, grant that we may draw the following inference,—that even men of genius are liable to cross humours; but I must at the same time add that the example is not dangerous, dumbness not being an efficacious method of making one's self valued, or of distinguishing ourselves to advantage. ”

“ Thanks to a sagacity without parallel, to a perseverance which knew no limits, to an ardour always youthful and which communicated itself to able coadjutors, Laplace solved the celebrated problem of the longitude more completely than could have been hoped for in a scientific point of view, with greater precision than the art of navigation in its utmost refinement demanded. The ship, the sport of the winds and tempests, has no occasion, in the present day, to be afraid of losing itself in the immensity of the ocean. ”

“ Let us to these immortal labours add the ingenious ideas that we owe to Herschel on the nebulæ, on the constitution of the Milky-way, on the universe as a whole; ideas which almost by themselves constitute the actual history of the formation of the worlds, and we cannot but have a deep reverence for that powerful genius that has scarcely ever erred, notwithstanding an ardent imagination. ”

“ The mathematics have been in all ages the implacable adversaries of scientific romances.
The fall of bodies, if it was not a phenomenon of perpetual occurrence, would justly excite in the highest degree the astonishment of mankind. What, in effect, is more extraordinary than to see an inert mass, that is to say, a mass deprived of will, a mass which ought not to have any propensity to advance in one direction more than in another, precipitate itself towards the earth as soon as it ceased to be supported! ”

“ His constant object was the explanation of the great phenomena of nature, according to the inflexible principles of mathematical analysis. No philosopher, no mathematician, could have maintained himself more cautiously on his guard against a propensity to hasty speculation. No person dreaded more the scientific errors which the imagination gives birth to, when it ceases to remain within the limits of facts, of calculation, and of analogy. Once, and once only, did Laplace launch forward, like Kepler, like Descartes, like Leibnitz, like Buffon, into the region of conjectures. ”

“ I could not avoid characterizing the journalist who by his daily calumnies contributed most to undermine the popularity of Bailly. It was requisite besides, once for all, to strip him in this circle of the epithet of philosopher, with which men of the world, and even some historians, inconsiderately gratified him. When a man reveals himself by some brilliant and intelligent works, the public is pleased to find them united with good qualities of the heart. ”

“ The frightful freezing of the earth, the epoch of which Buffon fixed at the instant when the central heat would be totally dissipated, is then a pure dream. At the surface, the earth is no longer impregnated except by the solar heat. So long as the sun shall continue to preserve the same brightness, mankind will find, from pole to pole, under each latitude, the climates which have permitted them to live and to establish their residence. ”

“ Is it not astonishing to find in the commensurability of the mean motions of two planets, a cause of perturbation of so influential a nature; to discover that the definitive solution of an immense difficulty—which baffled the genius of Euler, and which even led persons to doubt whether the theory of gravitation was capable of accounting for all the phenomena of the heavens—should depend upon the fortuitous circumstance of five times the mean motion of Saturn being equal to twice the mean motion of Jupiter? ”

“ To put forward an opinion so remote from received opinions, is imposing on one's self the duty of proving its truth.
After his condemnation, our colleague exclaimed, says La Fayette: "I die for the sitting of the Jeu de Paume, and not for the fatal day at the Champ de Mars." I do not here intend to expound these mysterious words in the glimpses they give us by a half-light; but, whatever meaning we may attribute to them, it is evident that the sentiments and passions of the lower class have no share in them; it is a point beyond discussion. ”

“ A kind and tender intimacy had grown up between the great naturalist Buffon and the celebrated astronomer. An academical nomination broke it up. You know it, Gentlemen; amongst us a nomination is the apple of discord; notwithstanding the most opposite views, every one then thinks that he is acting for the true interest of science or of letters; every one thinks that he is proceeding in the line of strict justice; every one endeavours earnestly to make proselytes. ”

“ The most timid minds troubled themselves quite as little about them as about eclipses of the sun and moon, which are equally subject to calculation. In fine, the labours of Clairaut had produced a deeper impression on the public mind than the learned, ingenious, and acute reasoning of Bayle.
The heavens offer to reflecting minds nothing more curious or more strange than the equality which subsists between the movements of rotation and revolution of our satellite. By reason of this perfect equality the moon always presents the same side to the earth. ”

“ Guided by the light of modern geology, it has been proposed to go with an immense sounding line in hand, to seek in the bowels of the earth the incalculable quantities of water, that from all eternity circulate there without benefiting human nature, to make them spout up to the surface, to distribute them in various directions, in large cities, until then parched, to take advantage of their high temperature, to warm economically the magnificent conservatories of the public gardens, the halls of refuge, the wards of the sick in hospitals, the cells of madmen. ”

“ Astronomy is the science of which the human mind may most justly boast. It owes this indisputable preëminence to the elevated nature of its object, to the grandeur of its means of investigation, to the certainty, the utility, and the unparalleled magnificence of its results.
From the earliest period of the social existence of mankind, the study of the movements of the heavenly bodies has attracted the attention of governments and peoples. ”

“ Bailly showed in all the relations of life a degree of patience, a suavity, a deference to the opinions of others, that would have soothed the most irascible self-love.
Must we suspect jealousy to have been at work? No, no; the persons who constituted the town-council were too obscure, unless they were mad, to attempt to vie in public consideration and glory with the illustrious author of the History of Astronomy, with the philosopher, the writer, the erudite scholar who belonged to our three principal academies, an honour that Fontenelle alone had enjoyed before him. ”

“ The progress of science would now perhaps allow of some modification being made in the ideas of the illustrious commissioners. Their views on warming-rooms, on their size, on ventilation, on general health, might, for example, receive some real ameliorations; but nothing could add to the sentiments of respect inspired by Bailly's work. What clearness of exposition! What neatness, what simplicity of style! Never did a writer put himself more completely out of view; never did a man more sincerely seek to make the sacred cause of humanity triumph. ”

“ At all events, this infernal combination failed; with a man like Bailly it could not succeed.
"Do you know the accused?" said the President to Bailly. "Oh! yes, I do know her!" answered the witness, in a tone of emotion, and bowing respectfully to Marie Antoinette. Bailly then protested with horror against the odious imputations that the act of accusation had put into the mouth of the young dauphin. From that moment Bailly was treated with great harshness. He seemed to have lost in the eyes of the tribunal the character of a witness, and to have become the accused. ”

“ The heart aches when, upon studying the history of the sciences, we perceive so magnificent an intellectual movement effected without the coöperation of France. Practical astronomy increased our inferiority. The means of investigation were at first inconsiderately entrusted to foreigners, to the prejudice of Frenchmen abounding in intelligence and zeal. Subsequently, intellects of a superior order struggled with courage, but in vain, against the unskilfulness of our artists. ”

“ Do not suppose, Gentlemen, that putting aside wretched views of self-love, the Eschevin would applaud such a result. He shows himself, on the contrary, deeply humiliated. And he will not fail in future to oppose every undertaking that might turn out to the honour of science. Crowds of such incidents occur to the mind. Are we to infer thence, that we ought to be afraid of seeing the administration of a town given up to the stationary, and exclusive spirit of the old Eschevinage—to people who have learnt nothing and studied nothing? ”

“ Our vision offers phenomena not less curious, and an infinitely vaster field of research. Experience has proved, for example, that some people are absolutely blind to certain colours, as red, and enjoy perfect vision relatively to yellow, to green, and to blue. If the Newtonian theory of emission be true, we must irrevocably admit that a ray ceases to be light as soon as we diminish its velocity by one ten thousandth part. Thence flow those natural conjectures, which are well worthy of experimental examination: all men do not see by the same rays ”

“ Our colleague had almost forgotten that it is not allotted to any person to conduct a scientific question to a definitive termination, and that the important labours of D'Alembert, Clairaut, Euler, Lagrange, and Laplace, while immortalizing their authors, have continually added new lustre to the imperishable glory of Newton. Let us act so that this example may not be lost. While the civil law imposes upon the tribunes the obligation to assign the motives of their judgments, the academies, which are the tribunes of science, cannot have even a pretext to escape from this obligation. ”

“ In the sanguinary drama that has been unrolled before your eyes, the atrocities had a quite different source from the sentiments common to the barbarians that were swarming in the dregs of society and always ready to soil it with every crime; in plainer words, it is not to the unfortunate people who have neither property, nor capital, living by the work of their hands, to the prolétaires, that we are to impute the deplorable incidents which marked Bailly's last moments. ”

“ Bailly calls successively to his aid astronomy, history, supported by vast erudition, philology, the systems of Mairan, of Buffon, relatively to the heat appertaining to the earth. He does not forget, using his own words, "that in the human species, still more sensitive than curious, more anxious for pleasure than for instruction, nothing pleases generally, or for a long time, unless the style is agreeable; that dry truth is killed by ennui!" Yet Bailly makes few proselytes; and a species of instinct determines men of science to despise the fruits of so persevering a labour ”

“ I shall modify very slightly, Gentlemen, the concluding words of our illustrious colleague's report, and I shall not in the least alter their innate meaning, if I say, in finishing this long analysis: "Each poor man is now laid alone in a bed, and he owes it principally to the gifted, persevering, and courageous efforts of the Academy of Sciences. The poor man ought to know it, and the poor man will not forget it." ”