In the 1960s, a study at Stanford’s Bing Nursery School tested the patience and willpower of young children. President Dieter F. Uchtdorf elaborated on this study in his talk, “Continue in Patience.” The children were placed in a room alone with a marshmallow and told they could either eat the marshmallow right away or, if they waited about 15 minutes, they would be rewarded with a second marshmallow. Only a third were able to wait long enough to receive the second treat.