“Those who say it can't be done are usually interrupted by others doing it.”
“People who say it cannot be done should not interrupt those who are doing it.”
“The world is moving so fast these days that the man who says it can't be done is generally interrupted by someone doing it.”
“The people who say "anyone can do that" are those who have never done it.”
“THOSE WHO SAID IT CAN'T BE DONE...SHOULDN'T GET IN MY WAY WHILE I'M DOING IT!”