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.

Even in the presence of others he was completely alone.

In Genesis, it says that it is not good for a man to be alone but sometimes it is a great relief.

Living alone makes it harder to find someone to blame.

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

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

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

Only the lonely know the way I feel tonight.

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.