Time waits for no man.
时间不等人./时不待我
Time lost can not be recalled.
光阴一去不复返。
Time and tide wait for no man.
岁月不待人。
Improve your time and your time will improve you.
提高效率，你也将会提高。
All time is no time when it is past.
光阴一去不复返.
A hero is known in the time of misfortune.
时势造英雄。
Lost time is never found again, and what we call time enough always proves little enough.
时间一去不再来,我们常说时间充足,实际总是不够。
How time flies!
时光飞逝。
To cherish the time, do not believe in fate.
要珍惜时间，别相信命运。
No time like the present.
只争朝夕。
There is no end to learning.
学无止境。
There is no royal road to learning.
学问无坦途。/书山有路勤为径,学海无涯苦作舟.
Knowledge starts with practice.
实践出真知。
It is never too old to learn.
活到老，学到老。
Lie down with dogs, wake up with fleas.
与狗同眠，醒来一身虱。
A bad beginning makes a bad ending.
恶其始者必恶其终。
A man becomes learned by asking questions.
不耻下问才能有学问。
Don't put the cart before the horse.
套车之前先备好马。
Better the devil you know than the one you don't.
明枪易躲,暗箭难防
If wishes were horses, beggars would ride.
如果愿望都能实现，乞丐早就发财了。
Don't talk the talk if you can't walk the walk.
不要说一套做一套。
A light heart lives long.
豁达者长寿;静以修身;心胸开朗,使人寿长;
Fortune favors the bold.
幸运眷顾勇敢者。
Two wrongs don’t make a right.
两个错误不等于一个正确。
Champions are made when no one is watching.
十年寒窗无人问，一朝夺冠（夺魁）天下知。
The pen is mightier than the sword.
笔尖胜过干戈。
When the going gets tough, the tough get going.
遇到逆境，顽强者逆流而上;艰难之路，唯勇者行
People who live in glass houses should not throw stones.
自己住在玻璃屋，不要向别人扔石头。
Keep your friends close and your enemies closer.
亲近你的朋友，更要亲近你的敌人。
A picture is worth a thousand words.
一张图片胜过千言万语。
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