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.

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

We are all sentenced to solitary confinement inside our own skins, for life.

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

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

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.

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

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

Alone we can do so little together we can do so much.