La única derrota es no haber intentado.

You have to keep thinking about what you can do to make the world a better place.

Protecting marine life is protecting our own future.

"The past is never dead. It's not even past."

人的教育应该从出生开始，一直持续到死亡。

随机实验是因果推理的黄金标准，但它们并不总是可行的。

真理是沉默和不断冥想的产物。