What a person is for himself, what abides with him in his loneliness and isolation, and what no one can give or take away from him, this is obviously more essential for him than everything that he possesses or what he may be in the eyes of others.

Empirical sciences prosecuted purely for their own sake, and without philosophic tendency are like a face without eyes.

Man may have the most excellent judgment in all other matters, and yet go wrong in those which concern himself; because here the will comes in and deranges the intellect at once. Therefore let a man take counsel of a friend. A doctor can cure everyone but himself; if he falls ill, he sends for a colleague.

If anyone spends almost the whole day in reading...he gradually loses the capacity for thinking...This is the case with many learned persons; they have read themselves stupid

Rudeness is better than any argument; it totally eclipses intellect.

Style is the physiognomy of the mind. It is more infallible than that of the body. To imitate the style of another is said to be wearing a mask. However beautiful it may be, it is through its lifelessness insipid and intolerable, so that even the most ugly living face is more engaging.

Night gives a black look to everything, whatever it may be.