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

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

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

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

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

I love to be alone. I never found the companion that was so companionable as solitude.

Living alone makes it harder to find someone to blame.

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

The best part about being alone is that you really don't have to answer to anybody. You do what you want.

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.