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

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

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

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

Only the lonely know the way I feel tonight.

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.

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

I have so many different personalities in me and I still feel lonely.

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