It will be seen that the whole learning of the Middle Age--its philosophy as well as its divinity--is here combined as in a figured abstract, for the wise to comment on and for the simple to peruse.

None can avoid drawing the lesson that knowledge exists for the service of the Church, and that the Church, while she instructs society, will claim complete obedience to her decrees.
The _ipse dixit_ of the Dominican author of the "Summa" is law.
Such frescoes, by no means uncommon in Dominican cloisters, still retain great interest for the student of scholastic thought.

In the church of S.
Maria Sopra Minerva at Rome, where Galileo was afterwards compelled to sign his famous retractation, Filippino Lippi painted another triumph of S.
Thomas, conceived in the spirit of Taddeo Gaddi's, but expressed with the freedom of the middle Renaissance.

Nor should we neglect to notice the remarkable picture by Traini in S.Caterina at Pisa.

Here the doctor of Aquino is represented in an aureole surrounded by a golden sphere or disc, on the edge of which are placed the four evangelists, together with Moses and S.Paul.[137] At his side, within the burnished sphere, Plato and Aristotle stand upright, holding the "Timaeus" and the "Ethics" in their hands.