释义：运气不好的时候，即使是黄金也会失去光泽；运气好的时候，连普通的铁也会发光。

The beauty of the olfactory system is that it is both simple and complex, allowing us to detect and discriminate an almost infinite number of odors.

最重要的是永远不要停止提问。

Never stop learning because the world never stops changing.

凡是做学问，必须从各个方面都理解透彻，还要更进一步深入理解内在的道理。