The man of self-control is he who can consistently perform the feat of abstraction. He is therefore trained to see things under the aspect of eternity, because form is the enduring part. Thus we invariably find in the man of true culture a deep respect for forms. He approaches even those he does not understand with awareness that a deep thought lies in an old observance. Such respect distinguishes him from the barbarian, on the one hand, and the degenerate, on the other. The truth can be expressed in another way by saying that the man of culture has a sense of style. Style requires measure, whether in space or time, for measure imparts structure, and it is structure which is essential to intellectual apprehension.