回复：呵呵，这就叫盲人摸象， 这两个医学生非医学行为和医生这个职业有什么关系呢。

To show your conclusion that every doctor is qualified and smart is wrong, a counter example is enough. I did not generalize this to the whole medical field.

Instead, for you to show that every doctor is qualified and excellent, you have to make an exhaustive enumeration.