Correct
好马不吃回头草
/ hǎo mǎ bù chī huítóu cǎo /
Strokes
Definition
lit. a good horse doesn't come back to the same pasture (idiom)/fig. one should not go back to one's past experiences (of love, job etc)
Example
Definition
a good horse never goes back to graze the grass left behind—a true man never backtracks