The essence of knowledge is self-knowledge.

Attention to health is life greatest hindrance.

Poverty doesn't come because of the decrease of wealth but because of the increase of desires.

The qualities which a man seeks in his beloved are those characteristics of his own soul, whether he knows it or not.

When two friends are in the mood to chat, we have to go about it in a gentler and more dialectical way. By 'more dialectical,' I mean not only that we give real responses, but that we base our responses solely on what the interlocutor admits that he himself knows.

The prisoner grows to love his chains.

Man's music is seen as a means of restoring the soul, as well as confused and discordant bodily afflictions, to the harmonic proportions that it shares with the world soul of the cosmos.