Food security is the cornerstone of national security.
The value of art is not in its price, but in its power to move people.
学习数学的唯一方法就是做数学。
Paths are made by walking.
我不需要任何人来完整我,我自己就能完整自己。
一个人的价值应该看他贡献了什么,而不是他能得到什么。