美国优先！
The most beautiful as well as the most ugly inclinations of man are not part of a fixed biologically given nature, but result from the social process which creates man.
The truth is, I don't know what I would have done without mathematics.
The personal is always political.
Sustainability isn't a trend—it's the future of food production.
城市关乎强度、集中和多样性。
If you lose or forget to bring a cable，adapter or charger，check with your hotel. Most hotels now have a drawer full of cables，adapters and chargers others have left behind，and probably have the one you are missing. You can often claim it after borrowing it.
My expectations were reduced to zero when I was 21. Everything since then has been a bonus.