When so many are lonely as seem to be lonely, it would be inexcusably selfish to be lonely alone.
Every man is born as many men and dies as a single one.
man is born, dies, single, alone
The only real progress lies in learning to be wrong all alone.
real progress lies in learning to be wrong
I have so many different personalities in me and I still feel lonely.
many different personalities, still feel lonely
There are places and moments in which one is so completely alone that one sees the world entire.
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.