There are two kinds of companies， those that work to try to charge more and those that work to charge less. We will be the second.

To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things, every single day.

Sustainability isn't an option; it's a responsibility we owe to future generations.

最有效的调试工具仍然是仔细的思考，再加上明智放置的打印语句。

目前生活中最悲哀的方面是，科学收集知识的速度比社会收集智慧的速度快。