There is a law in life: When one door closes to us another one opens.

An opinion, though it is original, does not necessarily differ from the accepted opinion; the important thing is that it does not try to conform to it.

The sole art that suits me is that which, rising from unrest, tends toward serenity.

But can one still make resolutions when one is over forty? I live according to twenty-year-old habits.

Do not think your truth can be found by anyone else.

The miser puts his gold pieces into a coffer; but as soon as the coffer is closed, it is as if it were empty.

Know thyself. A maxim as pernicious as it is ugly. Whoever studies himself arrest his own development. A caterpillar who seeks to know himself would never become a butterfly.