The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.

海洋保护不是牺牲，而是对我们生存的投资。

我们都有能力理解宇宙最深的秘密。

过去是一个异国；他们在那里做事的方式不同。

实现明天的唯一限制是我们今天的疑虑。