最可持续的产品是已经存在的产品。
不同元素的原子通过它们的重量相互区分。
每个故事都是一次旅程,每次旅程都会改变旅行者。
The most successful societies in the future will be those that are able to combine the efficiency and technological dynamism of the market with the social safety nets and political stability provided by the state.