I remember reading some years ago about a college student who had taken it upon himself to spend one hour every day learning something new. Renaissance Man is what they called him! I remember thinking about how rewarding a life that would be! But it's not everyone who has time to learn new things every day.
Fortunately for us teachers and coaches, we are immersed in a profession that affords us exactly that! In fact, a strong argument is made that unless we do learn something new each day, our profession and our students will pass us by.