解释：不通过学习而能自己知道的，不去请教他人而能自己通晓的，从古到今没有这样的事。

Sometimes you have to lose yourself before you find yourself.

I'm not a person who looks back. I'm always looking forward.

Dead men are heavier than broken hearts.

We hope to use technology to help more people be seen and more voices be heard.

Every discovery raises new questions.

一个民族的历史，本质上是其统治阶级的历史。

改变生活：立即开始，华丽地去做，没有例外。

中国的崛起代表了自冷战结束以来对自由国际秩序的最重大挑战。

可怜的是那些快乐取决于他人许可的人。