Nothing is more conducive to peace of mind than not having any opinion at all.

As soon as you know a man to be blind, you imagine that you can see it from his back.

God: personified incomprehensibility.

In every man there is something of all men.

It is too bad if you have to do everything upon reflection and can't do anything from early habit.

There is no greater impediment to progress in the sciences than the desire to see it take place too quickly.

In the world we live in, one fool makes many fools, but one sage only a few sages.