Adam Grant is an organizational psychologist, author, and host of the podcasts Work Life and Re: Thinking. His new book is Hidden Potential: The Science of Achieving Greater Things.

“If you only focus on your own interest, you tend to develop novel ideas, but not necessarily useful ideas. And so for me, the audience is a filter. … I might have 30 ideas for a book. Let me hone in on the four or five that also might be relevant to other people. The goal there is to make a contribution.”