Typically, people who exercise start eating better and becoming more productive at work. They smoke less and show more patience with colleagues and family. They use their credit cards less frequently and say they feel less stressed. It's not completely clear why. But for many people, exercise is a keystone habit that triggers widespread change.
Charles DuhiggThe Golden Rule of Habit Change: You can't extinguish a bad habit, you can only change it.
Charles DuhiggSelf-discipline has a bigger effect on academic performance than does intellectual talent.
Charles DuhiggBetween calculated risk and reckless decision-making lies the dividing line between profit and loss.
Charles DuhiggA 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.
Charles Duhigg