人类是陆地动物，但也是海洋动物。
The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth.
数学的真正力量在于它简化复杂事物的能力，使不可理解的事物变得可理解。
Our goal is to organize the world's information and make it universally accessible and useful.
Your time is limited, don't waste it living someone else's life. Don't be trapped by dogma, which is living with the results of other people's thinking. Don't let the noise of others' opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become. Everything else is secondary.