yesterday will not be called again.昨日不复来。
wit once bought is worth twice taught.由经验而得的智慧，胜于学习而得的智慧；一次亲身的体会，胜过两次的教师教导。
tomorrow comes never.切莫依赖明天。
time tries all.时间检验一切。
time past cannot be called back again.光阴一去不复返。
time and tide wait for no man岁月无情；岁月易逝；岁月不待人。
the morning sun never lasts a day.好景不常；朝阳不能光照全日。
the future is in my hands. it’s totally up to me.我的未来我作主。
seeing is believing.百闻不如一见。
put everything in its proper use 凡事都应用得其所 。
pursue your object, be it what it will, steadily and indefatigably不管追求什么目标，都应坚持不懈。
practice makes perfect.熟能生巧。
one today is worth two tomorrows.一个今天胜似两个明天。
nothing is difficult to the man will try 世上无难事,只要肯登攀 。
man is the artificer of his own happiness人是自己幸福的创立者。
make hay while the sun shines晒草要趁太阳好。
i’m born to succeed.我注定成功。
experience without learning is better than learning without experience.有经验而无学问，胜于有学问而无经验。
experience keeps a dear school,but fools learn in no other.经验学校学费高，愚人旁处学不到。
all time is no time when it is past.光阴一去不复返。
文书馆