Memorization
Rick was memorizing all of digits of pi. He told his math teacher that he memorized 50 digits of it. But she told him it was a waste of time. Rick knew it was simply memorization work. But he enjoyed it so much.
But she told him it was a waste of time. But he enjoyed it so much. Rick knew it was simply memorization work. He told his math teacher that he memorized 50 digits of it. Rick was memorizing all of digits of pi.