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

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.

Only the lonely know the way I feel tonight.

The best part about being alone is that you really don't have to answer to anybody. You do what you want.

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

There are places and moments in which one is so completely alone that one sees the world entire.

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

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

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

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