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

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

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.

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.

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

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

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

Alone we can do so little together we can do so much.

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