[niteshpant]

"The reason the persistent and the obstinate seem similar is that they're both hard to stop. But they're hard to stop in different senses. The persistent are like boats whose engines can't be throttled back. The obstinate are like boats whose rudders can't be turned."

"The persistent are attached to the goal. The obstinate are attached to their ideas about how to reach it."

Pretty much sums up the entire argument!