数学不是关于数字、方程、计算或算法的:它是关于理解的。
I'm not a brand. I'm not a thing. I'm a human being.
The world doesn’t need more cute things. It needs more truth.
The future of food depends on how we treat our soil today.
赏析:指出灵巧的人和聪明的人往往会因为自己的才能而劳累和忧虑,而没有才能的人则没有太多的追求和烦恼。
The most important part of teaching is to teach what it is to know.