To understand chemistry at its most fundamental level, we must look at the dance of electrons in molecules.
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
而是根据国家的具体情况,去掉那些无益于实用的东西,这就足够使国家的财利增加一倍了。 
我们讲故事是为了活着,我们活着是为了讲故事。