An idea is like a play. It needs a good producer and a good promoter even if it is a masterpiece. Otherwise the play may never open; or it may open but, for a lack of an audience, close after a week. Similarly, an idea will not move from the fringes to the mainstream simply because it is good; it must be skillfully marketed before it will actually shift people's perceptions and behavior.

The communications revolution has given millions of people both a wider and more detailed understanding of the world. Because of technology, ordinary citizens enjoy access to information that formerly was available only to elites and nation-states. One consequence of this change is that citizens have become acutely conscious of environmental destruction, entrenched poverty, health catastrophes, human rights abuses, failing education systems, and escalating violence. Another consequence is that people possess powerful communication tools to coordinate efforts to attack those problems.

What business entrepreneurs are to the economy, social entrepreneurs are to social change. They are the driven, creative individuals who question the status quo, exploit new opportunities, refuse to give up, and remake the world for the better.

An idea is like a play. It needs a good producer and a good promoter even if it is a masterpiece. Otherwise the play may never open; or it may open but, for a lack of an audience, close after a week. Similarly, an idea will not move from the fringes to the mainstream simply because it is good; it must be skillfully marketed before it will actually shift people's perceptions and behavior.

The prosperity of the second half of the twentieth century was both a cause and an effect of social and scientific breakthroughs that have redefined human life. The biggest change is simply that people live longer and have far more freedom to think about things other than staying alive.

Much of the criticism of economic globalization has centered on factory labor abuses. But the majority of the world's poor are not employed in factories; they are self-employed - as peasant farmers, rural peddlers, urban hawkers, and small producers, usually involved in agriculture and small trade in the world's vast "informal" economy .

Every change begins with a vision and a decision to take action.