A man of genius, of an ardent temperament, reckless of physical laws, self-indulgent, becomes presently unfortunate, querulous, a "discomfortable cousin," a thorn to himself and to others.
The scholar shames us by his bifold life. Whilst something higher than prudence is active, he is admirable; when common sense is wanted, he is an encumbrance.
 Ralph Waldo Emerson, Prudence (1841). copy citation

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Author Ralph Waldo Emerson
Source Prudence
Topic prudence shame
Date 1841
Language English
Reference in "Essays: First Series"
Note
Weblink https://en.wikisource.org/wiki/Essays:_First_Series/Prudence

Context

“One living after the maxims of this world, and consistent and true to them, the other fired with all divine sentiments, yet grasping also at the pleasures of sense, without submitting to their law. That is a grief we all feel, a knot we cannot untie. Tasso's is no infrequent case in modern biography. A man of genius, of an ardent temperament, reckless of physical laws, self-indulgent, becomes presently unfortunate, querulous, a "discomfortable cousin," a thorn to himself and to others. The scholar shames us by his bifold life. Whilst something higher than prudence is active, he is admirable; when common sense is wanted, he is an encumbrance. Yesterday, Caesar was not so great; to-day, the felon at the gallows' foot is not more miserable. Yesterday, radiant with the light of an ideal world, in which he lives, the first of men; and now oppressed by wants and by sickness, for which he must thank himself.” source