The organizational psychologist Adam Grant, who many know from his New York Times columns, describes three orientations of which we are all capable: the givers, the takers, and the matchers. These influence whether organizations are joyful or toxic for human beings. His studies are dispelling a conventional wisdom that selfish takers are the most likely to succeed professionally. And he is wise about practicing generosity in organizational life — what he calls making “microloans of our knowledge, our skills, our connections to other people” — in a way that is transformative for others, ourselves, and our places of work.