I love to be alone. I never found the companion that was so companionable as solitude.

All men's miseries derive from not being able to sit in a quiet room alone.

Look at the sky. We are not alone. The whole universe is friendly to us and conspires only to give the best to those who dream and work.

Every man must do two things alone he must do his own believing and his own dying.

There are places and moments in which one is so completely alone that one sees the world entire.

If it's true that our species is alone in the universe, then I'd have to say the universe aimed rather low and settled for very little.

I restore myself when I'm alone.

The only real progress lies in learning to be wrong all alone.

I paint self-portraits because I am so often alone, because I am the person I know best.