数学不是观赏性运动,你必须参与其中才能理解。
经济学的第一课是稀缺:从来没有足够的任何一种东西能够满足所有人对其需要。政治学的第一课是摒弃经济学的第一课。
"I'm interested in the human condition and what makes people tick. That's what drives me as an actor."
煤炭的真实成本必须既考虑其即时价值,也考虑其对社区和生态系统的长期影响。
Sustainability is not an option, it's the only way forward for responsible businesses.