I learned in my Ph.D. the ...

I learned in my Ph.D. the discipline I needed to be successful. Most boxers are not that disciplined. They have talent, but the self-organization - the ability to schedule yourself and your priorities - is lacking. My studies were about the control of training on both the psychological and the physical side.
 Wladimir Klitschko

Quotes from the same author

Who's gonna win between two brothers? The Klitschko mother's gonna win because she said it won't happen.
 Wladimir Klitschko
I should say that mental strength is No. 1, experience [is] No. 2, physical strength is No. 3, and genetic ability that you're getting from Mother Nature probably comes after.
 Wladimir Klitschko
All of my fights are planned. I study my opponents from A to Z. How he walks, how he looks, how he speaks, gestures of the human body, which is a certain language that provides you lots of information if you have the ability to read it.
 Wladimir Klitschko
I think that there's only one nationality and one language in the sport, and you call it performance.
 Wladimir Klitschko
Aggression means emotions. Emotions means you’re gonna get off your plan and that means you’ll lose the fight.
 Wladimir Klitschko