On Parents & their children

I have always felt this, but I want to put it down in writing.
Parents are the only people on earth who don't remind us of our errors, who pretend like we never hurt them, every child is a diamond to its mother's eyes.
As a Chinese proverb goes:

 “There is only one pretty child in the world, and every mother has it"

But it would be another thing if it was possible to get that kind of love from other people, it doesn't come free, it has to be earned with hard work, and hard-work doesn't always pay! Perhaps that's when most of us look back on childhood and appreciate our parents even more than we did before.
From a parent's perspective, it is also another thing to muster that kind of unconditional love for someone other than an own child.
It surprises me, how parents don't see their own child's faults and don't understand why someone can't get along with their dominating child, and can't understand why someone wouldn't want to be compromising for their child.
There is something very interesting that my mother told me once. I noticed her really praising her daughter-in-law a lot, so I asked her why she is so obsessed with her daughter-in-law to the extent of ignoring her own son! I was told that the son or daughter anyway knows that mother loves them, whereas a daughter-in-law or a son-in-law should be shown even more attention so that they realize they are being appreciated, they should feel wanted in a new family.
Then I realized that God makes some relations for us, but we have to cultivate those & make others ourselves.
I try to make the effort to externalize my appreciation for people, it makes their life happier when they realize they're respected. Whereas if the appreciation was just in my heart, they wouldn't have known!
All these observations in life, I find very amusing... But I don't practice everything that I observe. For example, I am not nice to people who are consistently not nice to me. I don't believe in bottling up oneself & living sad, if somebody hurts you, forgive them if you're able to, but don't shut up if you're really hurting inside, give it back to them if the attack continues. I am not referring to "revenge", "revenge" is really bad, I am just talking of "defense".
Life is short, it is my desire to be nice to people, and be nicer to people who are nice to me. And try my best to ignore, forgive, forget people who aren't nice to me. But I also believe that it is not just me who has to adjust, if I suffer too much of agony because of having to shut up, I decide to open my mouth (and I have a very loud one).
Oops this article was supposed to be about parents, I have diverged into some other zone (as always).