如今网络上到处都是免费的教育资源，真正稀缺的是对学习的渴望。

"Social media has given me a voice I never knew I could have, and for that, I'm forever grateful."

"Other people matter."

反馈是鲁棒控制的关键。

书中最重要的是故事。插图是为了支持和增强故事，而不是掩盖它。

"The act of writing is an act of courage."

我们都身处阴沟，但仍有人仰望星空。

The key to solving complex problems is often to find the right abstraction that simplifies the problem without losing its essential features.

过去是一个不同的国度，他们做事的方式不同。