It is in moments of illness that we are compelled to recognize that we live not alone but chained to a creature of a different kingdom, whole worlds apart, who has no knowledge of us and by whom it is impossible to make ourselves understood: our body.

To understand a profound thought is to have, at the moment one understands it, a profound thought oneself; and this demands some effort, a genuine descent to the heart of oneself . . . Only desire and love give us the strength to make this effort. The only books that we truly absorb are those we read with real appetite, after having worked hard to get them, so great had been our need of them.

Everybody calls "clear" those ideas which have the same degree of confusion as his own.

Are not the thoughts of the dying often turned towards the practical, painful, obscure, visceral aspect, towards the "seamy side" of death which is, as it happens, the side that death actually presents to them and forces them to feel, and which far more closely resembles a crushing burden, a difficulty in breathing, a destroying thirst, than the abstract idea to which we are accustomed to give the name of Death?

Any mental activity is easy if it need not be subjected to reality.

The only true voyage, the only bath in the Fountain of Youth, would be not to visit strange lands but to possess other eyes, to see the universe through the eyes of another, of a hundred others, to see the hundred universes that each of them sees, that each of them is; and this we do [with great artists]; with artists like these we do really fly from star to star.

And so when studying faces, we do indeed measure them, but as painters, not as surveyors.