If you dress a new something in old habits, it’s easier for the public to accept it.

Cravings are what drive habits. And figuring out how to spark a craving makes creating a new habit easier.

A movement starts because of the social habits of friendship and the strong ties between close acquaintances. It grows because of the habits of a community, and the weak ties that hold neighborhoods and clans together. And it endures because a movement's leaders give participants new habits that create a fresh sense of identity and a feeling of ownership.

The more you focus, the more that focus becomes a habit.

The same process that makes AA so effective—the power of a group to teach individuals how to believe—happens whenever people come together to help one another change. Belief is easier when it occurs within a community.

For a habit to stay changed, people must believe change is possible.

Habits, scientists say, emerge because the brain is constantly looking for ways to save effort.