Be kind, for everyone you meet is fighting a hard battle.
善良一点，因为你遇到的每个人都在打一场艰苦的战斗。
Patience is key in observational astronomy—some discoveries take decades to confirm.
Time erodes all such beauty, but what it cannot diminish… is the wonderful workings of your mind. Your humor, your kindness… and your moral courage.
The utility of an idea determines its place in mental life.
The only thing that scares me more than space aliens is the idea that there aren't any space aliens. We can't be the best that creation has to offer. I pray we're not all there is. If so, we're in big trouble.
Music has made me understand how important it is to persist in dreams.