If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
每个心理状态都是过渡性的
数据库的真正力量在于它能够连接不同的信息片段并揭示以前隐藏的模式。
Faith is taking the first step even when you don't see the whole staircase.
The opposite of courage in our society is not cowardice, it is conformity.