Learning is not a matter of trial and error, but of insight.

You don't have to hold a position to be a leader.

I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.

The health of our oceans reflects the health of our planet. We must act now to protect both.

The human being is a most curious creature.

邪恶胜利的唯一必要条件是好人不作为。