数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。
不光染丝是这样，国家也会被染。
Technology will be the bridge between traditional energy and a cleaner future.
The moment you stop learning is the moment you start failing.
要理解宇宙，你必须理解它所用的语言，那就是数学。
四勿：“非礼勿视，非礼勿听，非礼勿言，非礼勿动。”四端：“恻隐之心，仁之端也；羞恶之心，义之端也；辞让之心，礼之端也；是非之心，智之端也。”颜渊的“四勿”，要牢记心里；下工夫闲静存诚，克服外部的干扰以修养心性；孟子的“四端”，要尽力扩充，下工夫格物致知，由近及远，推己及人。
The meaning of life lies in how we give it meaning.
We are all alone in the universe, and the only thing that can bridge the gap between us is love.