LL Cool J, the fanatic

Where did LL Cool J get his hard flow? Through hard work, I guess.

"(...) at the time LL used to amaze me, ‘cos you go in his room – the dude would literally have twenty garbage bags in his room and they were all full of rhymes! He would just write and write and not stop! He was the most prolific dude that I had ever met, I couldn’t believe how many rhymes the dude would write! For every one you would say, he would have thirty rhymes to say!"

(From Unkut's interview with Dr. Butcher.)