要我说,人性之善是不能用金钱衡量的,善即是善,钱即是钱,可不要把麦子和谷壳搞混了。
As long as man continues to be the ruthless destroyer of lower living beings, he will never know health or peace. For as long as men massacre animals, they will kill each other.
The best way to learn mathematics is to do mathematics.