Writing is a dog's life, but the only life worth living.
The loneliness of command is inevitable.
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。
解释：想要变得刚强，必定先要保持柔和；想要变得强大，一定先要保持弱小。
The best investment you can make is in yourself.
A proof tells us where to concentrate our doubts.
The most advanced aquaculture systems still rely on the wisdom of natural ecosystems.