The historian’s first duty is to the truth.
Design is not just what it looks like and feels like. Design is how it works.
我是一个幸存者。我不会放弃，不会停下，我会更加努力。
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。