Do you have a Masters degree in Math? In education, a Masters degree in the next level, and there are levels higher, so the process of learning never really ends in any given subject. In trades, Masters are call Master Craftsmen or Journeyman, and are the next level or signify years of knowledge in the trade.
People have an inherent drive to excell, learn, achieve, advance their skill levels in almost everything. Especially if you found something that you really love in life. The term "Your are the Master of your own ship" are words to live by.
On a personal note in my trade of welding, we were the frontier of high tech processes, where if we couldn;t do it, we would invent how we could. We did things even I thought were impossible. You ahve to think outside the box to make it happen, be open to new ideas, and hone in on what makes it work better. Know the process and be able to adjust it for better results. I was always amazed how many people want no more than to go in and out daily for a paycheck, and do the minimum skating through the day. Taking the challenge in anything is the key. You have to want to Master things, suceed and make things happen, have a passion for what you do, and when you light the fire under yourself, great things can happen.