—Mark Twain
只凭一句赞美的话，我就可以充实地活上两个月。
——马克·吐温
convince[k?n?vins]v.说服；使……相信
We utterly failed to convince them.
我们根本说服不了他们。
frustrated[fr??streitid]adj.失败的；落空的
Mary was frustrated by the lack of appreciation shown of her work.
玛丽因工作得不到赏识而灰心丧气。
perspective[p??spektiv]n.远景；看法；透视
Artists didn't understand perspective in those days.