The key to success is consistency and never giving up.
成功的关键是坚持和永不放弃。
The question of truth and falsehood is always present, but it is not always answerable.
出自晋·葛洪《抱朴子·应嘲》。虽说昆山的玉石很多,但不能救济原宪的贫穷。喻指毫无价值的空话。