You can always do what you should do if you're willing to put in the time and energy to develop a new set of skills. If you only extend into places where your skill sets serve you, your skills will become outmoded.

    只要你愿意投入时间和精力来培养新技能，那么你就能做你应该做的事。如果你只涉猎你能力所及的领域，那么你的技能就会过时。

    ─杰弗里·贝佐斯（Jeffrey Bezos，亚马逊公司首席执行官）