The quote "A son ain't what a woman say. A son is what a man do" by Toni Morrison in her novel "Jazz" highlights the idea that a son's identity and development are significantly shaped by the actions and behavior of the father rather than merely the expectations set by the mother. It suggests that the father's role is crucial in molding a son's character and values. Action speaks louder than words, emphasizing that a child's upbringing is deeply influenced by the example set by parental figures.

This perspective underscores the importance of active involvement from fathers in their sons' lives. Morrison's words remind readers that behavior, rather than verbal instruction, serves as a primary template for a son's understanding of masculinity and responsibility. In essence, a father's deeds are instrumental in guiding his son’s path, reinforcing the idea that nurturing and guidance are not just about what is said but rather what is demonstrated through actions.