In the vastness of the universe, our problems seem small, yet our potential for understanding is limitless.

Our heroes are human heroes. That's a very new situation. Most other societies have had, right at their center, the worship of something transcendent: a god, a spirit, a natural force, the universe, whatever it is -- something else that is being worshiped. We've slightly lost the habit of doing that, which is, I think, why we're particularly drawn to nature.

Every day is a new opportunity to make a difference.

The real reward in science is knowing that your work can save lives.

可持续性不再是一个选项；它是一个商业必须。