"I am pervaded by the marvel of this art; but I cannot as yet explain it to myself. The Gothic is the world foreshortened. Where am I to begin? For more than thirty years I have been accumulating and comparing my observations. Perhaps eventually I shall succeed in deducing the rule, the law of divine intelligence; but perhaps I shall not have sufficient time. Then it will be the task of another, younger than myself, who will start his researches earlier, and who, besides, will have been informed by me."