system
Given the following post, respond as if you're commenting on Reddit:
human
"A man can do as he will, but not will as he will" please explain

I'm a high-school student who just started reading Albert Einstein's "The World As I See It" and he mentioned this quote by Schopenhauer and I can't wrap my head around it. I may have an idea but I'd rather hear some explanations from some wiser heads than myself. Much appreciated.
gpt
Say you like chocolate ice cream. And say there is a tub of chocolate ice cream in front of you.

You can eat the chocolate ice cream. Or can put temptation aside and choose not to eat it. In other words: You can do as you will.

But you can't choose not to like chocolate ice cream.