The goal of economics is to understand how to allocate scarce resources in the most efficient way possible.

释义：看见一片落叶，就知道一年内的时间将要到头了。通过细微的迹象，可以预料到整个形势的发展趋向与结果。

形容人心难以捉摸，民众的行为像烟一样飘忽不定。

永不放弃，永不投降。

I'm not a person who looks back. I'm always looking forward.

Innovation is not just about technology; it's about changing mindsets and embracing new ways of thinking.

A sustainable world starts with sustainable choices.