A thriving forest is the ultimate measure of success.
"The biggest victories come after the toughest battles."
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
I can calculate the motions of the heavenly bodies, but not the madness of people.
我们需要确保互联网保持开放,让每个人都能访问。
永远不要停止学习,因为世界永远不会停止变化。