 recognize that they need to be prepared for when the moments of crisis come. Are you going to be ready with the strategic organization and with the ideas seeded in society that are going to bring about change? I think the great lesson from history is summed up beautifully by the historian Howard Zinn, who said, the crucial problems of our time no longer can be left to simmer on the low flame of gradualism. We've got these urgent problems now, and the history lesson is that disruption actually works.