发出挑战怎么说？
求一篇关于应战书的英文稿
（昨晚7班向我们发出了英语挑战，需应战）

1.If you wish to succeed, you should use persistence as your good friend, experience as your reference, prudence as your brother and hope as your sentry.如果你希望成功，当以恒心为良友，以经验为参谋，以谨慎为兄弟，以希望为哨兵。
2.Success often depends upon knowing how long it will take to succeed.
成功常常取决于知道需要多久才能成功。
3.The man who has made up his mind to win will never say "impossible".
凡是决心取得胜利的人是从来不说"不可能的"。
4.The world can be changed by man's endeavor, and that this endeavor can lead to something new and better .No man can sever the bonds that unite him to his society simply by averting his eyes . He must ever be receptive and sensitive to the new ; and have sufficient courage and skill to novel facts and to deal with them . (Franklin Roosevelt , American President)

　　人经过努力可以改变世界，这种努力可以使人类达到新的、更美好的境界。没有人仅凭闭目、不看社会现实就能割断自己与社会的联系。他必须敏感，随时准备接受新鲜事物；他必须有勇气与能力去面对新的事实，解决新问题。（美国总统 罗斯福.F.）

5.A bird in the hand is worth than two in the bush.一鸟在手胜过双鸟在林。
6.A good beginning is half done.良好的开端是成功的一半。
7.All work and no play makes Jack a dull boy.

只会用功不玩耍，聪明孩子也变傻。

8.A straight foot is not afraid of a crooked shoe.身正不怕影子斜。
9.Confidence in yourself is the first step on the road to success.自信是走向成功的第一步。
10.Doing is better than saying.与其挂在嘴上，不如落实在行动上。
11.Don't claim to know what you don't know.不要不懂装懂。