The mental part is important.
One of my instructors has a guy making his debut on Saturday. He always says you never know how a guy will do in front of a crowd with a real opponent in front of him until he actually does it.
And heart is so important too. Is he the kind of guy whose body is saying 'no more', yet he just won't quit.
When given the choice between big business and big government, choose big business. Big business never threw millions of people into gas chambers, but big government did.
"It does not take a majority to prevail, but rather an irate, tireless minority, keen on setting brushfires of freedom in the minds of men" -Samuel Adams