Yes, but this expands on it in a way that I like. Saying it this way emphasizes that it's okay to acknowledge limits to what you can do.
The golden rule is inherently flawed. Treating others how you want to be treated doesn't work because they aren't you...
I always preferred the platinum rule: treat others the way they want to be treated.
(One quick websearch later) Ah, I see. Thanks - that makes a lot more sense to me now. Good luck.
I'm just gonna pretend that I didn't hear the "without harming yourself" part and go absolutely all out on giving my all just to please others with no regards to my own well being because I only feel like I have value when I do things for others and not intrinsically like you're supposed to feel and it feels too weird when people do nice things to me just because which I then in turn reject to give more of myself to others :3
/hj