Rewards might only provide short-term motivation and can lead to detrimental effects in the long term. Sometimes, the task or challenge itself can be motivating. Why is open-source encyclopedias like Wikipedia so successful? Creativity stems from intrinsic motivation. Do not turn play into work by providing rewards. Should one be paid for donating blood? Rewards are very addictive. For mechanical tasks, the larger the reward, the better the performance. Give people autonomy over their work. Those fuelled by autonomy, mastery and purpose tend to outperform those that are fuelled by money. Autonomy is the way to go. Time, task, technique, team. Allow for flexible hours etc. Find your own ‘flow’. Always seek to get better. Spend money on others and give back. There is a weak correlation between money and happiness. Autonomy, Mastery, Purpose.