When I was young I pitied the old. Now old, it is the young I pity.
It is sometimes well for a blatant error to draw attention to overmodest truths.
We spend our time envying people whom we wouldn't wish to be.
Whether man is disposed to yield to nature or to oppose her, he cannot do without a correct understanding of her language
I still understand a few words in life, but I no longer think they make a sentence.
Nothing leads the scientist so astray as a premature truth.