Growth comes from pushing boundaries.

我们每天支配的时间是有弹性的；我们感受到的激情会扩展它，我们激发的激情会收缩它；而习惯会填补剩下的部分。

But man is not made for defeat. A man can be destroyed but not defeated.

解释：不可以不知道活着的乐趣，也不可以不知道虚度光阴的担忧。

You have to have confidence in your ability, and then be tough enough to follow through.

Innovation is not just about creating something new; it's about making a difference.