劳动的自然价格是使劳动者能够生存并延续其后代所必需的价格，既不增加也不减少。

The P versus NP problem is one of the most important unsolved problems in computer science.

The greatest thing you'll ever learn is just to love and be loved in return.

电影中的沉默可能比任何对话都更有力量。

"The novel is the most democratic of art forms."

I think it's important to always keep learning and growing.

我们每一次的观察都是向解开宇宙之谜迈近的一步。