你不能仅仅问顾客他们想要什么,然后试图满足他们。等你把产品开发出来时,他们可能已经想要新的东西了。
The key to success is to focus on goals, not obstacles.
如果你每天都履行自己的义务,你就不必担心未来。
The most important things are hardest to tell,because words shrink their importance.It's not easy to let strangers care about the good things in your life.