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

If you are lonely when you're alone, you are in bad company.

Only the lonely know the way I feel tonight.

All of our unhappiness comes from our inability to be 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.

In Genesis, it says that it is not good for a man to be alone but sometimes it is a great relief.

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

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

It is strange to be known so universally and yet to be so lonely.

I restore myself when I'm alone.