Tomas is very over confident because the success and marks of college has little to do with any kind of success.
Explanation:
Today is a time of global competition where there is throat cutting competition among everything in the world. Almost a substitute of everything is available today.
So to keep in this competition, change is needed with time to match up the demand of the people from time to time. This means the learning does not stop at the college level. There has to be continuous learning to adapt to the changes in the society.