Astronomy compels the soul to look upwards and leads us from this world to another.
The affairs of music ought, somehow, to terminate in the love of the beautiful.
Necessity, who is the mother of our invention.
Wealth does not bring excellence, but that wealth comes from excellence.
He who steals a little steals with the same wish as he who steals much, but with less power.
The human race will have no respite from evils until those who are really philosophers acquire political power or until, through some divine dispensation, those who rule and have political authority in the cities become real philosophers.