For it is true we can seldom help those closest to us. Either we don't know what part of ourselves to give or, more often than not, the part we have to give is not wanted. And so it those we live with and should know who elude us. But we can still love them - we can love completely without complete understanding. - A River Runs Through It
I am a fan of Brad Pitt and I guess I've watched most of his movies and this movie is one of his touching movies in his early career. I hope you can relate or find wisdom from this meaningful quote.