Quote of the Day

I'm at the Learning Center, between students, and getting ready to brush up on my algebra skills (I've started helping students with math, as well as writing), and I came across the following quote in an algebra text:

Unless you try to do something beyond what you have already mastered, you will never grow.

I love the quote, but must acknowledge that there's a bit of irony in my use today, since I'm attempting to remaster something I had previously mastered, but have since forgotten.