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

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.

Even in the presence of others he was completely 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 don't want to be alone, I want to be left alone.

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

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

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

Love is our true destiny. We do not find the meaning of life by ourselves alone - we find it with another.

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