Even in the presence of others he was completely alone.

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

If you are lonely when you're alone, you are in bad company.

Absolutely lonely people have few personal interactions of any kind.

Yes, I guess you could say I am a loner, but I feel more lonely in a crowed room with boring people than I feel on my own.

When so many are lonely as seem to be lonely, it would be inexcusably selfish to be lonely alone.

Look at the sky. We are not alone. The whole universe is friendly to us and conspires only to give the best to those who dream and work.

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

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.

Living alone makes it harder to find someone to blame.