He was right in saying that the only certain happiness in life is to live for others.

There are no conditions to which a man cannot get accustomed, especially if he sees that everyone around him lives in the same way.

Can it be that there is not enough space for man in this beautiful world, under those immeasurable, starry heavens?

Here's my advice to you: don't marry until you can tell yourself that you've done all you could, and until you've stopped loving the women you've chosen, until you see her clearly, otherwise you'll be cruelly and irremediably mistaken. Marry when you're old and good for nothing...Otherwise all that's good and lofty in you will be lost.

God is the same everywhere.

To know God and to live is the same thing. God is Life.

Reason unites us, not only with our contemporaries, but with men who lived two thousand years before us, and with those who will live after us.