The opposite of an underminer is a supporter. When colleagues are supportive, they go out of their way to be givers rather than takers, working to enhance our productivity, make us look good, share ideas, and provide timely help.

To get important work done, most leaders organize people into teams. They believe that when people collaborate toward a common goal, great things can happen. Yet in reality, the whole is often much less than the sum of the parts.

Frenemies are worse than enemies, and it's not just in the workplace.

Adam Grant Quotes