To stay healthy we must stay motivated. This is important to society because humans are incentive run and must be constantly be rewarded for progress so motivational quotes help our minds, motivation is kind if like a reward for our brains. This is important to me because I try to remind myself everyday to keep myself healthy and work on myself every day.
If the plan doesn't work, change the plan but never, the goal. However, remember to learn that consistency is indeed the key to success and most people fail because they quit - and unfortunately just before success is about to knock on the door. http://davidjoragui.com/mental-health/the-power-of-consistency-a-key-to-success/