在量子力学中，观察者与被观察的系统并不是分离的。

可持续发展始于小步，但需要大视野。

If you believe that every life has equal value, it's revolting to learn that some lives are seen as worth saving and others are not. We said to ourselves: "This can't be true. But if it is true, it deserves to be the priority of our giving."

Diversification is the only free lunch in investing.