I think you have missed the point of the thread...
This thread is not aimed at all students in dental school. This thread is aimed at those who are near the bottom of their class. These dental students are
not taking their focus away from "succeeding" to "just getting by"; quite the opposite. They are down and out because they are at the bottom of their class, so we are telling them to keep on working harder than ever. We are telling them this so that they have a little motivation to help them succeed. The quotes in this thread are not to help them slack, but to give them motivation that they can finish D-school, and still become a good dentist.