Absolutely lonely people have few personal interactions of any kind.

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

Only the lonely know the way I feel tonight.

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

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

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

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

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