你必须努力梦想。

Even in abstraction, mathematics has profound real-world applications.

The true measure of a mining company's success is how it balances profit with environmental responsibility.

沉默可以比言语更有力量。

理论上存在一种完美的幸福可能性：相信自身内不可摧毁的元素，而不必努力追求它。