People have been known to achieve more as a result of working with others than against them.

The remark frames cooperation as a practical strategy rather than a moral ideal: people tend to accomplish more when they align their efforts with others instead of expending energy in opposition. It implies that conflict carries hidden costs—time, attention, and goodwill—that can outweigh any gains from “winning.” The phrasing “have been known to” gives it the tone of an observed social fact, suggesting experience in organizational or interpersonal settings where collaboration, coalition-building, and shared purpose amplify results. As a piece of advice, it nudges readers toward teamwork, negotiation, and mutual benefit as the more productive path to achievement.