可持续性不是一种选择;它是我们对后代的责任。
Sustainability isn't a choice; it's our responsibility to future generations.
No matter what you do, always follow your heart.
学习的意愿是一种内在动机,其来源和奖励都在于其自身的实践。
写作的真正美在于其触动人类心灵的能力。
我们不是在制造汽车,我们是在培养制造汽车的人。
The value of an economic model lies in its ability to explain and predict.