When professors teach, they teach what they love. What they are experts in. What it is easy for them to learn. Thus, it is easy to forget what it is like to be the student who struggles in the classroom.

Wadewitz, Adrianne. (August 12, 2013). "What I learned as the worst student in the class". HASTAC: Humanities, Arts, Science, and Technology Alliance Collaboratory. — reprinted and cited in: "How Adrianne Wadewitz learnt to embrace failure". The Sydney Morning Herald. April 25, 2014. Retrieved April 25, 2014.