我们越是研究疼痛，就越能理解它在生存中的作用。
The more we study pain, the more we appreciate its role in survival.
Ethics isn't a barrier to progress—it's a guide for responsible progress.
The dialogue between old and new is what gives a city its richness.
The labor which it would require to make a single one of these guns by hand would exhaust the patience and perseverance of any ordinary workman.
Moral Precepts are precepts of perfection.
【讲解】：孝敬父母，尊敬长辈是做人的根本。
每一个挑战都是伪装的机遇。