A 100%?

Before a major examination, we work really hard.
During the exam, we do our best. We tend to say " I have given a 100% effort."
After the exam, when we get our results, we tend to say " If only I had done this. " "If only I had done that." " There is so much room for improvement, I could have done better."

This makes me wonder again. When is it that we actually give a 100%? Does the judgement of whether we have done our best only comes after we looked at the results? If it's bad, we say "Oh, I am sure I can do better than this." Even if it's excellent, we will still say, " I can do better than that." because nobody is perfect. Moreover, getting the perfect score does not mean that you have given a 100%.

So people, food for thought of the day! =)