Lactantius

“ In such a difference of opinions, whom do we follow? whom do we believe? All are of equal authority. If we are able to select that which is better, it follows that philosophy is not necessary for us; because we are already wise, inasmuch as we judge respecting the opinions of the wise. But since we come for the sake of learning wisdom, how can we judge, who have not yet begun to be wise? especially when the Academic is close at hand, to draw us back by the cloak, and forbid us to believe any one, without bringing forward that which we may follow. ”

“ All must entertain the same sentiments, and philosophy itself must give instructions as it were with one mouth; because if any error shall be committed, life is altogether overthrown. In that former part, as there is less danger, so there is more difficulty; because the obscurity of the subject compels us to entertain different and various opinions. ”

“ Let us now pass to the other part of philosophy, which they themselves call moral, in which is contained the method of the whole of philosophy, since in natural philosophy there is only delight, in this there is utility also. And since it is more dangerous to commit a fault in arranging the condition of life and in forming the character, greater diligence must be used, that we may know how we ought to live. ”