We live together, we act on, and react to one another; but always, and in all circumstances, we are by ourselves.

For the born traveller, travelling is a besetting vice. Like other vices, it is imperious, demanding its victim's time, money, energy and the sacrifice of comfort.

Man approaches the unattainable truth through a succession of errors.

Art, I suppose, is only for beginners, who have made up in their minds to be content with symbols rather than with what they signify, with the elegantly composed recipe in lieu of actual dinner.

An irrelevance, and your life's altered.

We shall be permitted to live on this planet only for as long as we treat all nature with compassion and intelligence.

Our vanity makes us exaggerate the importance of human life; the individual is nothing; Nature cares only for the species.