Civilization is built on a number of ultimate principles... respect for human life, the punishment of crimes against property and persons, the equality of all good citizens before the law... or, in a word justice. ↗
The comedians all finished their acts with a song. They would get a certain amount of money from the song publishers and would use that money to pay the writers. None of them paid very much for their comedy material, but it all added up. ↗
It is relatively easy to design for the perfect cases, when everything goes right, or when all the information required is available in proper format. ↗
Sure, one can always get the students to relax and be happy - entertained, but although being laid back and relax can also lead to creativity, mostly it means that nothing much gets done. ↗