I find just as much profit in cultivating my hates as my loves.

A desire for truth is by no means a need for certitude and it would be unwise to confuse one with the other.

True kindness presupposes the faculty of imagining as one's own the suffering and joys of others.

Clear and precise ideas are the most dangerous, for one does not dare to change them.

In other people's company I felt I was dull, gloomy, unwelcome, at once bored and boring.

Drunkenness is never anything but a substitute for happiness.

With each book you write you should lose the admirers you gained with the previous one.