健全的外交政策的首要条件是对自己价值观的清晰认识。
The first prerequisite of a sound foreign policy is a clear understanding of one's own values.
Rent is that portion of the produce of the earth which is paid to the landlord for the use of the original and indestructible powers of the soil.
音乐是我无法言语时的声音。
We are the sum of our ancestors' struggles.
纠缠不仅仅是量子理论的一个奇特特征，它是量子力学的标志性特征。
数学中最深刻的思想往往源于最简单的观察。
可持续性不是一种选择；它是我们行业未来的必需品。
