Serious things cannot be understood without laughable things, nor opposites at all without opposites.
Numbers are the highest degree of knowledge. It is knowledge itself.
The contemplation of beauty causes the soul to grow wings.
All well bred men should have mastered the art of singing and dancing.
But tell me, this physician of whom you were just speaking, is he a moneymaker, an earner of fees, or a healer of the sick?
If someone separated the art of counting and measuring and weighing from all the other arts, what was left of each (of the others) would be, so to speak, insignificant.