Seeking for the improvement and insatiable are the same, merely the previous one has better pronounce.
要求进步和得寸进尺是相同的,只是前者好听一点。
Dirty car is not afraid of dirty. Failure is not afraid of fail.
肮脏的车不怕肮脏。失败的人不怕失败。
(This picture copied from : http://email-junk.com/pictures/things-we-dont-see-every-day.html)