The other day I was working with a friend and to make a joke I said, "When your best isn't good enough, try harder!" We laughed, but I kept thinking about it. It makes a lot of sense and can be applied to life.
Think about it, what is your best? It varies day to day. I learned this lesson from a wonderful mentor Mrs. Rich. She explained that in our job we shouldn't try to do our best, we should do a good job. This is basically what the statement above is saying. Your best when your sick may not be what you are capable of, so try a little harder to do better job.
Each day will bring different challenges. You may wake up tomorow gung ho and ready to work, but the next you won't even want to get out of bed, but you can do it!
Challenge: Figure out what you are capable of and what is a good job for you. Set that as your bar. When you are trying your best, but not living up to the bar you have set, push yourself a little harder.