We don't need more objects, we need more connections.
Economics is the study of how societies use scarce resources to produce valuable goods and services and distribute them among different individuals. If we think about the definitions, we find two key ideas that run through all of economics:
 工作让我们远离三种邪恶:无聊、恶习和贫困。
我不数做了多少仰卧起坐,只在感到疼痛时才开始计数。
创新不仅仅是创造新事物;而是让现有的东西更好地运作。