A man can be himself only so long as he is alone; and if he does not love solitude, he will not love freedom; for it is only when he is alone that he is really free.

The ingenious person will above all strive for freedom from pain and annoyance, for tranquility and leisure, and consequently seek a quiet, modest life, as undisturbed as possible, and accordingly, after some acquaintance with so-called human beings, choose seclusion and, if in possession of a great mind, even solitude. For the more somebody has in himself, the less he needs from the outside and the less others can be to him. Therefore, intellectual distinction leads to unsociability.

All geniuses are peculiarly inclined to solitude, to which they are driven as much by their difference from others as the inner wealth with which they are quipped, since among humans, among diamonds, only the uncommonly great are suited as solitaires: the ordinary ones must be set in clusters to produce any effect.

The young should early be trained to bear being left alone; for it is a source of happiness and peace of mind.