这个世界惟有两样东西让我们的心灵感到深深的震撼,
I sing not because I am blind, but because I have a voice.
The writer is a man who has to live in the world but not be of it.
We must stop just talking about change and start acting.
Every smell we perceive is a complex interaction between molecules and receptors, and understanding this interaction is key to understanding our sensory experiences.