復(fù)雜性理論告訴我們，并非所有問題都是平等的；有些問題本質(zhì)上比其他問題更難。
Collaboration across borders is essential to solve the global challenges of food security and ocean health.
生命中唯一不變的是變化。
In the short run, the market is a voting machine but in the long run, it is a weighing machine.