Youth eats all the sugared fancy cakes and regards them as its daily bread. But there'll come a time when you'll start asking just for a crust.

I share no man's opinions; I have my own.

Nature is not a temple, but a workshop, and man's the workman in it.

In my case there was no first love. I began with the second.

Life deceives everyone except the individual who doesn't contemplate it, the individual who demands nothing from it, the individual who serenely accepts its few gifts and serenely makes the most of them.

Oh youth, youth! You don't worry about anything; you seem to possess all the treasures of the universe--even sorrow gives you pleasure, even grief suits you.... And perhaps the whole secret of your charm lies not in your ability to do everything, but in your ability to think that you will do everything.

What's important is that twice two is four and all the rest's nonsense.