算法的真正考验不仅在于其正确性，还在于其可扩展性和鲁棒性。
A law of nature， lex naturalis， is a precept or general rule found out by reason， by which a man is forbidden to do that which is destructive of his life or takes away the means of preserving the same.
History is not just about kings and battles—it's about the people who lived through it.