出自先秦《荀子·修身》。利益少，但是道义多，这样的事要做。在利与义之间要舍利而取义，强调的是一种修身原则。

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.

团队的力量大于个人，只有合作才能创造奇迹。

I think what Kanye West is going to mean is something similar to what Steve Jobs means.

质量不是任务；它是一种责任。