Remember our words, then, and whatever is your aim let virtue be the condition of the attainment of your aim, and know that without this all possessions and pursuits are dishonourable and evil.

Rhythm and melody enter into the soul of the well-instructed youth and produce there a certain mental harmony hardly obtainable in any other way. . . . thus music, too, is concerned with the principles of love in their application to harmony and rhythm.

Trees and fields tell me nothing: men are my teachers.

And we must beg Homer and the other poets not to be angry if we strike out these and similar passages, not because they are unpoetical, or unattractive to the popular ear, but because the greater the poetical charm in them, the less are they meet for the ears of boys and men who are meant to be free, and who should fear slavery more than death.

Geometry will draw the soul toward truth and create the spirit of philosophy.

They deem him their worst enemy who tells them the truth.

Love is of something, and that which love desires is not that which love is or has; for no man desires that which he is or has. And love is of the beautiful, and therefore has not the beautiful. And the beautiful is the good, and therefore, in wanting and desiring the beautiful, love also wants and desires the good.