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。
Today is difficult, tomorrow is more difficult, but the day after tomorrow is beautiful.
我对那些人们认为不能用于永久结构的脆弱材料感兴趣。
The more we learn, the more we realize how much we don’t know.
"What is to give light must endure burning."