Life lessons will be presented to you in the order they are needed. Everything you need to master the lesson is within you. Once you have truly learned a lesson， you will be presented with the next one. If you are alive， that means you still have lessons to learn.
在一个不断变化的世界中，适应能力是一个公司可以拥有的最有价值的技能。
λ演算的基本概念是函数，被视为一种对应规则。