"for"or "to"

(for\to) me,happiness means creating........
___(for\to)the donor"s parents,seeing the person who had gained life seemed to ease their suffering.
__(for\to)other europeans,the best known quality of the sritish is reserved.
which should i use?what's the difference?


to me, happiness means creating........

for the donor"s parents,seeing the person who had gained life seemed to ease their suffering.

for other europeans, the best known quality of the British is reserved.
which should i use?what's the difference?

Any one want to try to explain why?

No, i wouldn't like to attempt to explain prepositions. In any language i've ever studied, the use of prepositions, especially in conjunction with particular verbs, as an idiomatic thing, and one which is intuitive to a native-speaker. Everybody else just has to learn them.