Standing on One Foot

Lex wouldn't call himself an outcast. That would imply that he wanted to fit in. He was a loner - being alone was comfortable and familiar. His childhood was lonely, and he was resigned to the fact that his adulthood would follow the same pattern, but you're not always fully in control of your future.

Lex ultimately realises that shielding yourself from world is like standing on one leg - if you lose your balance, nobody is there to catch you.