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

Absolutely lonely people have few personal interactions of any kind.

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

Only the lonely know the way I feel tonight.

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 restore myself when I'm alone.

I finally faced the fact that it isn't a crime not having friends. Being alone means you have fewer problems.

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

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

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