圣人不贵尺之壁而重寸之阴，时难得而易失也。
【大意】古来圣哲不珍视直径成尺的璧玉，却珍重每一寸光阴，因为时间最是难得，却最容易失去。
学习正确答案将帮助孩子完成学业，但学会如何学习是为一生做准备。
Market failures are often not failures of markets, but failures of market design.
The more honest you are, the more open, the less fear you will have.
We don't inherit leather from our ancestors—we borrow it from our children.
理解宇宙就是理解我们自己，因为我们都是由形成恒星的星尘构成的。