当没人相信你的时候,你必须相信自己。
You have to believe in yourself when no one else does.
钢铁的强度只与制造它的人的强度相匹配。
语言的研究最终是对人类心灵的研究。
It is now clear that the hybrids form seeds which have the one or the other of the two differentiating characters.