if you're unwilling to take a position so bold that it can embarrass you if it fails, it's correspondingly impossible to take a position that can make a real difference if it works out well.
-@theRealKiyosaki
I took Ogilvy's course on Behavioural Economics and Comsumer psychology.
Here are the 10 important theory's I learned from it which you'd be a fool to miss out on: