Quality begins long before the first cut is made - it begins with the right mindset.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
Science is not just a collection of facts; it's a way of thinking.
人的欲望和其他激情，本质上是受到他自己控制的；他真正的困难在于，要知道何时需要加以控制，何时不需要。