You play the hand you're dealt. I think the game's worthwhile.

I am a very lucky guy. I can testify before Congress. I can raise funds. I can raise awareness.

Either you vegetate and look out a window, or activate and try to effect change.

I remember telling a neurosurgeon, "Don't give me too much information, because at the moment my ignorance is my best asset."

For everyone who thought I couldn’t do it… for everyone who thought I shouldn’t do it… for everyone who said, ‘It’s impossible’… see you at the finish line!

We live in a time when the words impossible and unsolvable are no longer part of the scientific community's vocabulary. Each day we move closer to trials that will not just minimize the symptoms of disease and injury but eliminate them.

What makes Superman a hero is not that he has power, but that he has the wisdom and the maturity to use the power wisely. From an acting point of view, that's how I approached the part.