Even in the presence of others he was completely alone.

The time you feel lonely is the time you most need to be by yourself.

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

Absolutely lonely people have few personal interactions of any kind.

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.

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

Only the lonely know the way I feel tonight.

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

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.

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