He who is in love with himself has at least this advantage - he won't encounter many rivals.
He who says he hates every kind of flattery, and says it in earnest, certainly does not yet know every kind of flattery.
Here take back the stuff that I am, nature, knead it back into the dough of being, make of me a bush, a cloud, whatever you will, even a man, only no longer make me me.
Doubt must be no more than vigilance, otherwise it can become dangerous.
There exists a species of transcendental ventriloquism by means of which men can be made to believe that something said on earth comes from Heaven.
There is no greater impediment to progress in the sciences than the desire to see it take place too quickly.
To be content with life or to live merrily, rather all that is required is that we bestow on all things only a fleeting, superficial glance; the more thoughtful we become the more earnest we grow.
To do the opposite of something is also a form of imitation, namely an imitation of its opposite.
To err is human also in so far as animals seldom or never err, or at least only the cleverest of them do so.
To grow wiser means to learn to know better and better the faults to which this instrument with which we feel and judge can be subject.
We accumulate our opinions at an age when our understanding is at its weakest.
There are very many people who read simply to prevent themselves from thinking.
We have no words for speaking of wisdom to the stupid. He who understands the wise is wise already.
What is the good of drawing conclusions from experience? I don't deny we sometimes draw the right conclusions, but don't we just as often draw the wrong ones?
What is called an acute knowledge of human nature is mostly nothing but the observer's own weaknesses reflected back from others.