So many men, so many minds. 人心各不同。 

Some thing is learned every time a book is opened. 开卷有益。 

Strike while the iron is hot. 趁热打铁。 

The car will find its way round the hill when it gets there. 车到山前必有路。 

The heart is seen in wine. 酒后吐真言。 

The older the wiser. 人老智多。(姜还是老的辣。) 

The worse luck now, the better another time. 风水轮流转。 

Thoughts are free from toll. 思想不用交税。(人人都可以自由思考。) 

Time tries all things. 时间检验一切。 

Use legs and have legs. 经常用腿,健步如飞。 

Virtue never grows old. 美德常青。 

Walls have ears. 隔墙有耳。 

What is done cannot be undone. 覆水难收。 

Wine in, truth out. 酒后吐真言。 

You are only young once. 青春只有一次。 

You cannot burn the candle at both ends. 蜡烛不可两头燃。(鱼和熊掌不可兼得。) 

You cannot have your cake and eat it. 有得就有失。(事难两全其美。) 

You never know till you have tried. 事非经过不知难。 

Youth will be served. 青春好作乐。 

Zeal without knowledge is a runaway horse. 无知的狂热是脱缰的野马。