The capacity for not feeling lonely can carry a very real price, that of feeling nothing at all.

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 don't want to be alone, I want to be left 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.

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

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

Alone we can do so little together we can do so much.

We are all sentenced to solitary confinement inside our own skins, for life.

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

A man content to go to heaven alone will never go to heaven.