Unless we love and are loved, each of us is alone, each of us is deeply lonely.

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

It is strange to be known so universally and yet to be so lonely.

What a lovely surprise to finally discover how unlonely being alone can be.

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

All men's misfortunes spring from their hatred of being alone.

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.

I never said, 'I want to be alone.' I only said, 'I want to be left alone.' There is all the difference.

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.