I know enough to know that no woman should ever marry a man who hated his mother.
— Martha Gellhorn
Killer Mother Son Relationship quotations
Remember that every son had a mother whose beloved son he was, and every woman had a mother whose beloved son she wasn't.

It was Joseph Smith who taught me how to prize the endearing relationships of father and mother, husband and wife; of brother and sister, son and daughter, mashed potatoes and gravy.

Mothers see the angel in us because the angel is there.
If it's shown to the mother, the son has got an angel to show, hasn't he? When a son cuts somebody's throat the mother only sees it's possible for a misguided angel to act like a devil - and she's entirely right about that!
Thank God I have four sons. The mother/daughter relationship is one of mankind's great mysteries, and for womankind, it can be hellaciously complicated. My mother and I are quintessential examples of the rewards and frustrations, and the joys and infuriations it can yield.
Mothers are inscrutable beings to their sons, always.

Her family had of late been exceedingly fluctuating.
For many years of her life she had had two sons; but the crime and annihilation of Edward a few weeks ago, had robbed her of one; the similar annihilation of Robert had left her for a fortnight without any; and now, by the resurrection of Edward, she had one again.
Think about it, I say. How many straight men maintain inappropriately intimate relationships with their mothers? How many shop with them? I want a gay son. People laugh, but they assume I'm kidding. I'm not.
But a mother-son relationship is not a coequal one, is it? He is lonely with only you just as you are lonely with only him.

... there had been the two little boys. Now they were gone, too. They loved her and called her and sent her e-mails and would still snuggle up to her to be petted when they were in the mood, but they were men, and though they would always be at the center of her life, she was no longer at the center of theirs.
A lot of times, when mother-son or mother-daughter relationships have been put on screen, they tend to trickle towards ugly, and I don't find that totally realistic for the wide swath of us and it's also not that fun to watch.
For me, the most powerful way to write about something is through the absence of it. Rather than writing about what it was to become a new mother, I wrote, for example, a father facing death and addressing his estranged son about the regrets of his relationship.