I get similar feelings when I read an amazing research paper, particularly the ones in prestigious journals such as Nature, read certain textbooks or sit in lectures. The authors or professors can explain these terribly complex concepts and physiological mechanisms in their sleep, whereas I'm diddling around trying to get my head around just the basics. Some of the professors have wrote books, frequently attend conferences all over the world and still maintain even they don't know everything about the particular topic they've spent over 20 years studying.

For me, I don't look at these experts and feel put down, instead it motivates me to become just as proficient as they are. Even if I don't get my Masters or worse, get my Masters but somehow botch something up, I still look up to those particular individuals as role-models so I can eventually have such tremendous knowledge and beautiful articulation in whatever field I end of studying and practicing in.