MARK RIPPETOE: A Very Simple Mathematical Truth For Successful Strength Training. “Few things could be simpler: use a few exercises that work as much of the body at one time as possible, find out how strong you are now on these exercises, and next time you train, lift a little heavier weight. Just a little. It’s the same process you used to learn to read, to play the guitar, to get a suntan, and to finish your master’s thesis. It’s the same process used to build an airplane or to evolve a more complex organism. It’s the accumulation of adaptation – the enemy of entropy – and it can be done by quite literally everybody.”

UPDATE: Link was wrong before. Fixed now. Sorry!