I'm just remembering myself at 22 or 23. I was all engine and no steering. (Laughter) I had the wheels but I had no steering. I do think it's true that when you're younger, you're more likely to listen to all the naysayers, and people are always telling you how you ought to behave and what kind of job you should get and how you should look.
Your desire or beliefs will literally be reaching back into time, teaching the nerves new tricks. Definite reorganizations in that past will occur in your present, allowing you to behave in entirely new fashions. Learned behavior therefore alters not only present and future but also past conduct.