"I'm always evolving, always changing."
Curiosity is the engine that drives us towards understanding the cosmos.
The best economic insights come from observing how people actually behave.
可持续性不仅仅是植树造林;而是确保我们今天采取的每一个行动都不会损害未来。
革命道德不是从天上掉下来的。它是在日常斗争中培养,在革命活动中锤炼的。