化学是物质的科学，但我更愿意将其视为变化的科学。
I dream that my son will grow up to be a good person, a free person. I dream that someday you will return to revisit the land of our childhood. I dream that flowers will bloom in the streets again...and kites will fly in the skies!
"Freedom is nothing but a chance to be better."
Three things you need: The ability to not give up something till it works， the ability to give up something that does not work， and the trust in other people to help you distinguish between the two.
