数学不在于数字、方程、计算或算法，而在于理解。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
自由就是没有选择。
"Men and women differ in their desires for short-term mating because the reproductive benefits and costs differed for our ancestors."
The greatest single achievement of computer science is the development of the concept of the algorithm.
我们都需要有人来吻干我们的眼泪。