There are two freedoms - the false, where a man is free to do what he likes; the true, where he is free to do what he ought.
La palabra es el instrumento más poderoso que tenemos para cambiar el mundo.
Sustainability isn't a trend, it's our responsibility to the future.
The difference between perseverance and obstinacy is that one comes from a strong will, and the other from a strong won’t.
科学无国界，因为知识属于人类，是照亮世界的火炬。
A great editor knows when to hold and when to fold.