不要害怕放弃好的，去追求伟大的。
"Don't be afraid to give up the good to go for the great."
We are survival machines—robot vehicles blindly programmed to preserve the selfish molecules known as genes.
Use songs to warm every heart in need.
You are not defined by your past.
有利于国家、人民的事情就要坚定的实行，有害于国家、人民的事情就要坚定的铲除。
The true way is along a rope that is not spanned high in the air, but just above the ground. It seems intended more to cause stumbling than to be walked upon.