Most parents hope to see report cards full of A's. Maybe a B here or there isn't all that bad, but we believe that if our child gets A's in all his subjects, then we know he has mastered the material and is well along the road to success.
However, straight A's may actually be a sign of something else. Yes, those A's might tell us that our child has mastered the material, but they may also be telling us that our child hasn't learned the value of hard work. What leads to success is not just knowledge, but a willingness to work hard. When those straight A's are earned too easily, a child may not understand how to put forth the effort it takes to be successful in life. To be successful, one needs to be able to cope with failures and continue trying even when the going gets a little rough.
Persistence is at least as important as knowledge. If those A's come too easily to a child, they don't learn how to persist and deal with the frustration one can feel when they run into a problem. Giving up does not lead to success.