"A good picture book leaves room for the reader's imagination to grow."
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
最好的电影是那些在你观看后久久不能忘怀的电影。
A miner's safety should never be measured in cost-benefit analyses.
挡在你和目标之间的唯一东西是你不断告诉自己为什么无法实现它的故事。