自由的代价是永恒的警惕。
The best revenge is massive success.
I strongly believe that missionaries make better products. They care more. For a missionary， it's not just about the business. There has to be a business， and the business has to make sense， but that's not why you do it. You do it because you have something meaningful that motivates you.
复杂性不仅仅是系统中组件的数量，而是它们相互作用的性质。
"The only way to get rid of a temptation is to yield to it."