The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land, is yet to come.
当课堂只追求“有趣”，知识就失去了厚度。
真相是一团火，烧毁它路径上的一切。
比一无所有的人更危险的，是拥有一切可赢的人。
Every reader brings something different to a story.
我比自己的思维所能理解的更强大。
The true measure of our success isn't in tons extracted, but in lives impacted.