Pain nourishes courage. You can't be brave if you've only had wonderful things happen to you. Pain is inevitable. Misery is optional. Physical pain is a fact that comes with living, just as illness or financial woes or broken relationships are facts. But misery is a state of mind, a reaction to the facts, that can be controlled or altered by an act of will....

Lifes Commas Moving Ahead in Spite of (ed. 2006)