I enjoyed reading this post. Though, to be fair, I usually enjoy most of your posts I choose to click on. Maybe because we are both deep thinkers.
I also adore quotes. While I have been far less organised in my collecting of such wise words, I choose to expose myself to new quotes regularly.
I have too many to choose a single favourite but one that comes to mind right now (and frequently) is:
Be the change... (you wish to see in the world).
Mostly I hold fast to the first bit knowing what it means. I have always attributed this to Gandhi but it appears (after some Googling) that someone, at some point, summarised the essence of a longer quote by him.
I often struggle to remember quotes exactly as they are, or, indeed, who said them. But I feel their intended meaning deeply. It's like, as I think you said above, a good quote will reach into you, its essence changing you.
That's why I think I love me a good quote so darn much.
Thanks for choosing to click on this particular post, I know there's so many better posts out there to read and seeking them all, all the time, can be a challenge.
I think the concept behind quotes repeats itself over and over and that's not a bad thing. It doesn't matter if the same (similar) thing is said over and over by different people in different ways, that helps the message come through as reading a quote may not resonate until it's said/written in a way that...umm...resonates I guess. Change is something we should all be embracing and if positive changes are undertaken, more often, the world is likely to be a better place. It's a good premise to work around.