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

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

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

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

Living alone makes it harder to find someone to blame.

Only the lonely know the way I feel tonight.

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

When so many are lonely as seem to be lonely, it would be inexcusably selfish to be lonely alone.

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