Literally: "Treat others and expect to be treated in return."
A cycle, a revolution. An orbit of treating people. Once you treat another, it will be coming back to you.
"I treated my friend earlier this week, so this weekend I got an unexpected treat when i didn't even expect it. Classic case of Stabenism right there."
(n). stoo-den-ism
Using a person only for their intellectual abilities to get your work done, an advantage over other students, a better understanding of the material, and/or better grades.
(v) To improve oneself's grades and to lessen one's schoolwork by using a more studious student to do your work for you.
Henry comes up to Bob (straight-A student) and asks him for help on the homework, but then pressures Bob a bit to get him to do his homework and also help him on the test.
John comes up to Bob: "Dude you just got Bob to do your work for you! That's studenism."
Henry: "John I didn't studenize Bob, chill."