只要美利坚对于自由和美好生活充满信念，明天就会更加美好。
Tomorrow will be better for as long as America keeps alive the ideals of freedom and a better life.
数学的本质在于它的自由。
世上还没有一种方法，可以从一个人的脸上探察他的居心；他是我所曾经绝对信任的一个人。
形容医生对待患者时应保持高度谨慎和责任感
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法：它是关于理解的。
We must rethink our relationship with nature to ensure long-term survival.
Music is a universal language that everyone can understand.