The power of abstraction is what allows mathematics to transcend the limits of physical reality.
It took untold generations to get you where you are. A little gratitude might be in order. If you're going to insist on bending the world to your way, you better have your reasons.
如果你有梦想，就要守护它。
False happiness renders men stern and proud， and that happiness is never communicated. True happiness renders them kind and sensible， and that happiness is always shared.
我们越是了解动物的真实本性，就越意识到我们与它们有多少共同之处。