Based on this excerpt, randy pausch believes that his students

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So I called up my mentor, and I called up Andy Van Dam. And I said, Andy, I just gave a two-week assignment, and they came back and did stuff that if I had given them a whole semester I would have given them all As. Sensei, what do I do? [laughter] And Andy thought for a minute and he said, you go back into class tomorrow and you look them in the eye and you say, "Guys, that was pretty good, but I know you can do better." [laughter] And that was exactly the right advice. Because what he said was, you obviously don't know where the bar should be, and you're only going to do them a disservice by putting it anywhere. And boy was that good advice because they just kept going. . . .

In that sense, the answer would be:

Randy Pausch believes that his students, although they don't complete any task, they do have a good potential.

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i think its c im not reakly syre  

Explanation: