1.There is no time like the present.
时不我待。

2.Facts speak louder than words.
事实胜于雄辩。

3.Many hands make light work.
众人拾柴火焰高。

4.Develop a passion for learning.
要培养求知欲.

5.Faith will move mountains.
精诚所至金石为开。

6.Leap， and the net will appear.
车到山前必有路。

7.Lies will collapse by themselves.
谎言不攻自破。

8.What is not wisdom is danger.
不明智即是危险。

9.A friend in need is a friend indeed.
患难见真情。

10.Good medicine tastes bitter.
良药苦口/忠言逆耳。

11.No pressure， no diamonds.
天将与之，必先苦之。

12.Dream big and dare to fail.
锐意进取，无惧挫折。

13.Passion begets persistence.
唯有热爱，方能坚持。

14.Be positive. Be true. Be kind.
积极。真挚。友善。

15.He who wants nothing fears nothing.
无欲则刚。

16.Opportunity knocks but once.
机不可失时不再来。

17.Your only limit is your mind.
唯思想是人类的局限。

18.Failure is the mother of success.
失败乃成功之母。

19.Never, never, never, never give up.
永远不要、不要、不要、不要放弃。

20.Not everything that is faced can be changed, but nothing can be changed until it is faced.
并不是你面对了，任何事情都能改变。但是，如果你不肯面对，那什么也变不了。