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

Absolutely lonely people have few personal interactions of any kind.

We are all sentenced to solitary confinement inside our own skins, for life.

The time you feel lonely is the time you most need to be by yourself.

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

The only real progress lies in learning to be wrong all alone.

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

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

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

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