However, to modify a habit, ...

However, to modify a habit, you must decide to change it. You must consiously accept the hard work of identifying the cues and rewards that drive the habits' routines, and find alternatives. You must know you have control and be self-conscious enough to use it -- and every chapter in this book is devoted to illustrating a different aspect of why that control is real.
 Charles Duhigg

Quotes from the same author

Since the 17th century, insurance agents have been the foremost experts on risk.
 Charles Duhigg
The brain has this amazing ability to find happiness even when the memories of it are gone.
 Charles Duhigg
There’s something really powerful about groups and shared experiences. People might be skeptical about their ability to change if they’re by themselves, but a group will convince them to suspend disbelief. A community creates belief.
 Charles Duhigg
Self-discipline has a bigger effect on academic performance than does intellectual talent.
 Charles Duhigg
If you dress a new something in old habits, it’s easier for the public to accept it.
 Charles Duhigg