The details are not the details. They make the design.
The only limit to our realization of tomorrow is our doubts of today.
Cowards die many times before their deaths
"The only true voyage of discovery, the only fountain of Eternal Youth, would be not to visit strange lands but to possess other eyes, to behold the universe through the eyes of another, of a hundred others, to behold the hundred universes that each of them beholds."
Trade between two countries can be mutually beneficial, even if one of them is less efficient in the production of all commodities.
多走楼梯。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
The beauty of science lies in its ability to surprise us.
