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

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

A man content to go to heaven alone will never go to heaven.

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.

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

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

All of our unhappiness comes from our inability to be alone.

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

Even in the presence of others he was completely alone.

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