除第一次外,所有内容均应自上而下构建。
数学不是关于数字、方程、计算或算法的:它是关于理解的。
"The best stories are those that linger in the mind long after the last page."
数学是一种创造性的努力,就像艺术或音乐一样。
"The colony is the place where the project of a new humanity is to be tested, where the dream of a world without borders is to be realized, where the dream of a world without races is to be realized, where the dream of a world without nations is to be realized, where the dream of a world without classes is to be realized."
反反复复地做同一件事情,不是孩子天生就喜欢的,但是在重复的过程中,孩子熟能生巧。
我们都在阴沟里,但仍有人仰望星空。