Sooner or later, just about every working person encounters a career decision that takes a familiar and universal form: take the money on the table, or hold out for the promise of more? Take a paying gig that’s not perfectly aligned with your long term career goals? Or accept an unpaid internship or underpaying but high “prestige” position hoping to score a better opportunity down the road?There’s been much recent talk of the “marshmallow test,” a kind of psychological exam for young children in which the subject is left alone in a room with a single marshmallow on a plate. The child is told that she can eat the treat, but if she chooses to wait, she’ll be rewarded with TWO marshmallows later on. Researchers suggest that the children who wait will demonstrate higher levels of patience and self-discipline later in life, and will consequently reap the rewards that come with those traits. Based on this experiment alone, our decision at the crossroad should be easy: always hold out for more. Take the internship. Don’t settle. Opportunity is worth more than money. And so on.