how can one quantify love, or qualify what is love?

example: yelling at a child when he is about to touch a hot stove is right (good, correct); it is an expression of love. are we not supposed to yell too hard because the warning is free?

fiat psychology has twisted out minds. establishing economic guidelines for love is stupid and will lead to disasters. we can economize with advice, goods, and services. simply do what is right.