三代以上,天皆不同今日之天,地皆不同今日之地,人皆不同今日之人,物皆不同今日之物。
出自《魏源集·默觚下·治篇五》。三代以上,天都跟现在的天不一样,地都跟现在的地不一样,人也跟现在的人不一样,物也和现在的物不一样。
Great leaders are willing to make the tough decisions that others avoid.
The arithmetic of algebraic varieties is a window into the hidden structures of mathematics.
Sustainability is the future of aquaculture, and we must invest in eco-friendly technologies.
The desire to be loved is perhaps the most deeply rooted of all our vanity.
Collaboration between industry and regulators is essential to achieve both economic growth and environmental protection.