"The only limit to our realization of tomorrow will be our doubts of today."
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
真相很少纯粹，也绝不简单。
当你想要放弃的时候，想想你当初为什么坚持了这么久。
The best technology should be invisible, just like electricity - you don't need to understand how it works to use it.