Education begins the gentleman, but reading, good company and reflection must finish him.
化学是一门研究物质性质及其变化的科学。
The only limit to our realization of tomorrow is our doubts of today.
要将一个国家从最低级的野蛮状态带到最高度的富裕,所需的几乎只有和平、低税收和较为合理的司法管理。
We are all products of deep time.