Don't try to win a friend by presenting gifts。You should instead contribute your sincere love and learn how to win others 'heart through appropriate ways.
数学直觉常常指导算法的发展，但确保其正确性和效率的是严格的证明。
Success is not about how much money you make, but how many people you inspire.
全球政治的未来将由民主和威权制度之间的竞争所塑造。