Scholasticism was an imposing and yet strangely grotesque system of the world, built up--before a background of blazing stakes--of scriptural passages and ecclesiastical tradition, lofty, pure thought and antique-mediaeval superstition. Its fundamental problem, the determination of the border line between faith and knowledge, was purely philosophical. While the older scholasticism, based on Platonic traditions, endeavoured to bring these into harmony with Christianity, that is to say, prove the revelations by dialectics, Albertus Magnus and, authoritatively, his pupil, Thomas Aquinas (1226-1274), strictly distinguished, by the use of Aristotelian weapons, the rational or perceptive truths from the supernatural verities or the subjects of faith. This distinction, made in order to safeguard dogma, quickly revealed its double-face. The handmaiden philosophy rebelled against her mistress theology, and asked her for her credentials. According to the classic and dogmatic doctrine of Thomas, the natural verities alone could be grasped by human understanding; the supernatural or revealed truths (the dogmas) were beyond proof and scientific cognition. To submit them to research was not only an impossible task, but Thomas stigmatised every effort in this direction as heresy, fondly believing that he had once and for all safeguarded the position of faith. But more resolute and profound thinkers, although not in so many words attacking the authority of the Scriptures, and leaving Thomas' border-line unquestioned, found the unfathomable truths not in ecclesiastical tradition but in their own souls, thus investing "faith" with a new meaning, unassailable by criticism.