In mathematics, the journey from question to answer is often more enlightening than the answer itself.
在数学中，从问题到答案的旅程往往比答案本身更具启发性。
教育不是为了生活的准备，教育就是生活本身。
We have a responsibility to future generations to leave the planet in better shape than we found it.
我们有责任为子孙后代留下一个比我们发现时更好的地球。
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.
Functions delay binding; data structures induce binding. Moral: Structure data late in the programming process.