custom is a second nature.
习惯是后天养成的。
 
custom makes all things easy.
有个好习惯，事事皆不难。
 
diamond cuts diamond.
强中自有强中手。
 
don't make a mountain out of a molehill.
不要小题大做。
 
don't put off till tomorrow what should be done today.
今日事，今日毕。


don't trouble trouble until trouble troubles you.
不要自找麻烦。
 
don't try to teach your grandmother to suck eggs.
不要班门弄斧。
 
do well and have well.
善有善报。
 
early to bed and early to rise makes a man healthy, wealthy and wise.
早睡早起身体好。

 
doing is better than saying.
与其挂在嘴上，不如落实在行动上。