Every heart sings a song, incomplete, until another heart whispers back. Those who wish to sing always find a song. At the touch of a lover, everyone becomes a poet.

It is fear and terror that make all men brave, except the philosophers. Yet it is illogical to be brave through fear and cowardice.

Madness, provided it comes as the gift of heaven, is the channel by which we receive the greatest blessings... the men of old who gave things their names saw no disgrace or reproach in madness; otherwise they would not have connected it with the name of the noblest of arts, the art of discerning the future, and called it the manic art... So, according to the evidence provided by our ancestors, madness is a nobler thing than sober sense... madness comes from God, whereas sober sense is merely human.

He is unworthy of the name of man who is ignorant of the fact that the diagonal of a square is incommensurable with its side.

The purpose of education is to give to the body and to the soul all the beauty and all the perfection of which they are capable.

It is right to give every man his due.

The affairs of music ought, somehow, to terminate in the love of the beautiful.