书是一个你可以握在手中的世界。
系统有子系统,子系统有子系统,等等,这是无限的,这就是为什么我们总是从头开始。
谷物生产的创新不仅关乎技术,更关乎思维方式的转变。
"Children deserve art that challenges them as much as it delights them."