You cannot be lonely if you like the person you're alone with.

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

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

Only the lonely know the way I feel tonight.

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

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

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

Associate with men of good quality if you esteem your own reputation for it is better to be alone than in bad company.

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

Living alone makes it harder to find someone to blame.