I am of the opinion that anyone who can squat 400 lb below parallel without a suit or press200 overhead has a strong core. I am of the opinion that when a person increases their squat, theyhave increased their core strength. I am also of the opinion that if a person wants to strengthentheir core, they must make something quantifiably stronger.
Mark RippetoeYou can't make people smarter. You can expose them to information, but your responsibility stops there.
Mark RippetoeSince the trainee is both inefficient and unadapted, only a few basic exercises should be used, and they should be repeated frequently to establish the basic motor pathways and basic strength.
Mark RippetoeExercise is not a thing we do to fix a problem - it is a thing we must do anyway, a thing without which there will always be problems
Mark Rippetoe