这个世界是个美好的地方，值得为之奋斗。

【释义】过度保护抑制型儿童，等于剥夺他们学习应对恐惧的机会。

The United States is the most powerful country in the world, and it will remain so for the foreseeable future.

To understand mathematics is to understand the fabric of reality.

解释：利用时机，就像救火和追击逃亡者一样，跌跌撞撞地奔跑，只怕来不及。

I give my whole water in joy,“sings the waterfall,”though little of it is enough for the thirsty.

我不害怕变老。我认为变老是一种特权。

I'm a person who likes to be remembered.

因果模型是理解世界的关键。