As I get older I'm more and more comfortable being alone.

All of our unhappiness comes from our inability to be alone.

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

It is strange to be known so universally and yet to be so lonely.

Love is our true destiny. We do not find the meaning of life by ourselves alone - we find it with another.

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 never said, 'I want to be alone.' I only said, 'I want to be left alone.' There is all the difference.

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

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

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.