Presentation and sensation then have already been sufficiently discussed above. It is sensation that causes a passion, which is called presentation, to arise in the soul, and from presentation comes notion. Thereafter thought, weighing the truth or falseness of the notion, determines what is true: and this explains the Greek word for thought, διάνοια, which is derived from διανοεῖν, meaning to think and discriminate. That, however, which is judged Cf. 1 Cor. i. 10. and determined to be true, is spoken of as mind.