好马不吃回头草

好马不吃回头草:

Literally means:

a good horse never goes back to graze the grass left behind;a true man never backtracks.

Actually means:

It figuratively means that an ambitious person doesn't backtrack.

It emphasizes that one never picks up the things that has been done before or that have been given up after he or she starts a new career or undertaking.

Sometimes it implies that one will lose face if he or she takes the track back.

好马不吃回头草，比喻有志气的人不走回头路。

它强调新的事情或新的事业开始以后，就不再做从前做过或已经放弃了的事。

有时含有再走回头路就会丢面子的意义。