世界上最好和最美的东西是看不见甚至摸不着的——它们必须用心去感受。
The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.
A good mathematician is someone who can see analogies between theorems. A great mathematician is someone who can see analogies between analogies.
Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.
要信守承诺。
全球饥饿问题不能仅靠慈善解决，它需要系统性变革。
理解代数簇的算术就是理解其中隐藏的对称性。
Cuando estoy en el escenario, siento que estoy en casa.