Control leads to compliance; autonomy leads to engagement.
compliance control engagement motivation Motivational
Greatness and nearsightedness are incompatible. Meaningful achievement depends on lifting one's sights and pushing toward the horizon.
The monkeys solved the puzzle simply because they found it gratifying to solve puzzles. They enjoyed it. The joy of the task was its own reward.
Dan Ariely, author of Predictably Irrational, a book that offers an entertaining and engaging overview of behavioral economics.