Even in the presence of others he was completely alone.

I finally faced the fact that it isn't a crime not having friends. Being alone means you have fewer problems.

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

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

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

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.

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

Associate with men of good quality if you esteem your own reputation for it is better to be alone than in bad company.

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

Unless we love and are loved, each of us is alone, each of us is deeply lonely.