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

Always give a word or sign of salute when meeting or passing a friend, or even a stranger, if in a lonely place.

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

The capacity for not feeling lonely can carry a very real price, that of feeling nothing at all.

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

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

I restore myself when I'm alone.

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