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

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.

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

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

Always give a word or sign of salute when meeting or passing a friend, or even a stranger, if in a lonely place.

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

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

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

Even in the presence of others he was completely alone.

The time you feel lonely is the time you most need to be by yourself.