Everything

The most outward way you show your absolute superiority to the rest of the world is through the sheer breadth of topics you teach. The very reason the concept of lesson subjects exists in the first place is because the average human brain cannot comprehend too much information being sent at once, so people made the concept of subjects as way to separate the overwhelming amount of information needed into manageable chunks.

However, you mind is not beholden to the same limitations that other people adhere to. Not only do you possess absolute knowledge in every academic subject, but you also know that nothing exists in a vacuum. Indeed, all the knowledge in the universe is linked in an intricate, infinitely complex tangle, and you can see and organize all of the countless intersection points between subjects, and understand how those intersections influence the overall picture with peerless efficiency. It is this innate understanding of how everything in the universe interacts with each other that allows you to truly know everything, and with absolute knowledge comes absolute power.

As you stare at your perfect naked form in the mirror, you smile smugly, knowing that your good looks come not from blind luck or good genes, but because you knew how to manipulate the complexities of the universe in such a way that allowed you to have complete control over how your body developed, granting it infinite strength, invulnerability, immortality, eternal youth and complete immunity to all diseases. After getting dressed, you set off a journey through time towards your next lesson, musing about how trivial it would be for people to move through time the same way they move through the spacial dimensions if only their primitive minds knew where in the universe to look...