How many a dispute could have been deflated into a single paragraph if the disputants had dared to define their terms

It is evidently equally foolish to accept probable reasoning from a mathematician and to demand from a rhetorician demonstrative proofs.

Music directly represents the passions of the soul. If one listens to the wrong kind of music, he will become the wrong kind of person.

The two qualities which chiefly inspire regard and affection are that a thing is your own and that it is your only one.

Thus then a single harmony orders the composition of the whole...by the mingling of the most contrary principles.

Now property is part of a household, and the acquisition of property part of household-management; for neither life itself nor the good life is possible without a certain minimum supply of the necessities.

...in this way the structure of the universe- I mean, of the heavens and the earth and the whole world- was arranged by one harmony through the blending of the most opposite principles.