The Jesuit teachers also knew that fixing the impression was extremely important. This fits in with their stress on memory-work—and it was not automatic memorizing, it had to be thorough understanding. Their manuals of teaching never tire of saying: Repeat, repeat and repeat. They nearly always add that the master must watch carefully and vary his questions to ensure that there is nothing mechanical about this repetition, but then they urge once more Repeat and once more Repeat.
The Art of Teaching by Gilbert Highet