You cannot be lonely if you like the person you're alone with.

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.

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

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

Living alone makes it harder to find someone to blame.

Every man is born as many men and dies as a single one.

Only the lonely know the way I feel tonight.

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.

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