最好的创新往往是对最顽固问题的最简单解决方案。
The best innovations are often the simplest solutions to the most persistent problems.
I'm mentioning all this -- I'm mentioning all this because I think this is not merely a personal problem; you may think I'm wrong in this, but I think we live in an age when our lives are regularly punctuated by career crises, by moments when what we thought we knew -- about our lives, about our careers -- comes into contact with a threatening sort of reality.
"The only thing that is truly boundless is the human spirit."