Take the Elements of Euclid and turn them into an elementary grammar book.
The Elements of Euclid were written in the forensic mode. Write them in the conventional mode of a correct grammar introduction.
This should get me busy for awhile.
By biological fact, we are supposed to standardize our own behavior, which means we start with our most basic behaviors, we start with the hand. Standardizing the behavior of the hand to teach the mind standardization of concepts.