It is a sure evidence of a good book if it pleases us more and more as we grow older.

Man is a masterpiece of creation, if only because no amount of determinism can prevent him from believing that he acts as a free being.

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.

The most dangerous untruths are truths slightly distorted.

What I do not like about our definitions of genius is that there is in them nothing of the day of judgment, nothing of resounding through eternity and nothing of the footsteps of the Almighty.

When an acquaintance goes by I often step back from my window, not so much to spare him the effort of acknowledging me as to spare myself the embarrassment of seeing that he has not done so.

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