I knew nothing about professional comedians when I became a comedian. I was a rabbi. So I had no professional comedians to learn from.
When I was very young I wanted to be a professional horseback rider. Then I wanted to be a pop singer. Then I wanted to be a psychiatrist. Then I wanted to be a movie director.
A professional knows what's impossible. If you know it's impossible, it is impossible. But if you don't know it's impossible, suddenly it is possible.
We don't want to keep talking about 'potential.' That word is the most dangerous word in professional sports.
In science, a healthy skepticism is a professional necessity, whereas in religion, having belief without evidence is regarded as a virtue.
I'm going to stay in the gym, stay watching film, stay focused, stay being an all around professional.
It's different when you become a professional, because you also have to become a businessman, and that takes something away from it.
While professional basketball, football, and baseball players make millions and their salaries represent well over 50% of the billions generated by those sports, the spoils of boxing don't often make it to the boxers.
Understandably, the electorate places great faith in the professional soldiers and strategists that run our military.