Can you see the resemblance to Nathan Clark George (his grandson)? Maybe that's a picture of Nathan over his right shoulder? All he needs is a guitar and a Ron Paul sticker and he'd be a dead ringer for NCG.
Here is the conclusion to Gordon Clark's excellent essay, "Concerning Free Will"-
One will soon learn that God is not so impotent as to have to sit back, after offering the gospel, and wait and see who will accept it. It will be clear that the Holy Spirit operates on the will of man, changes his likes and dislikes, takes away his heart of stone and gives him a heart of flesh, in fact gives him faith. God does not sit back and do nothing: He regenerates- He controls man's will. Such is the gospel; the other view (free will) is not. As the Psalmist said, "Blessed is the man whom thou choosest and causest to approach unto thee" (Ps.65:4). God causes men to turn to Him. No one else can.