Improving our already done activities

Last day, we did an interesting but a different activity than usual ones. It was very surprising the activity itself because instead of doing a another more activity, we were said to do an improvement in all our previous activities. That has quite cool because after reviewing them I thought that would be difficult to improve them, but when I were reviewing I saw that I can always improve my performance and that made me feel that it covers all the fields in life, not just studies. We always can improve because even the best ones try that.