For example, Dan Pink's talk on motivation, which was pretty good, if you haven't seen it: "Drop carrot. Drop stick. Bring meaning." It's what he's basically talking about in those 18,5 minutes.
Por ejemplo, la charla de Dan Pink sobre la motivación que es bastante buena, si no la han visto: "Sin garrote, ni zanahoria: aporte sentido". De eso habla en los 18 minutos y pico.