You guys should check out the book. Fif drops a lot of jewels. He has a great chapter on silence and also debunks a lot of falsehoods that pervade our culture regarding drugs and spending money. He also talks about business decisions he made in music and in corporate and the backstory behind them.
Fif said that while he was stacking he didn't partake in drugs or alcohol because he didn't want to grow dependent on it and many artists get defeated by it.
I just heard a 2 min snippet of it on the Budden Podcast, Fif reads like the school bully who hated to read in front of the class. I'm still gonna try to listen to this shit tomorrow.