The progress of science is the gradual realization that the problems we face are not as simple as they seem.
科学的进步是逐渐认识到我们面临的问题并不像它们看起来那么简单。
Money is overrated. Truly new things rarely need an abundance of money. If that was so， billionaires would have a monopoly on inventing new things， and they don’t. Instead almost all breakthroughs are made by those who lack money， because they are forced to rely on their passion， persistence and ingenuity to figure out new ways. Being poor is an advantage in innovation.
Stay true to yourself, because no one can replace you.
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
"The world is a book, and those who do not travel read only one page."