Extrinsic rewards tend to last longer than intrinsic ones.

This statement is actually the opposite of what research has shown. Intrinsic rewards, such as personal satisfaction and enjoyment of a task, tend to have longer lasting effects on motivation and behavior compared to extrinsic rewards, such as money or gifts. Extrinsic rewards may provide temporary boosts in motivation, but can often lead to a decrease in intrinsic motivation over time.