Any jackass can kick down a barn, but it takes a good carpenter to build one.
Let the other fellow get the headlines. I'll take the laws.
There's no education in the second kick of a mule
There are no degrees in honorableness. You either are or you aren't.
Don't ever talk until you know what you're talking about...
Readiness for opportunity makes for success. Opportunity often comes by accident; readiness never does.