Even when laws have been written down, they ought not always to remain unaltered. As in other sciences, so in politics, it is impossible that all things should be precisely set down in writing; for enactments must be universal, but actions are concerned with particulars. Hence we infer that sometimes and in certain cases laws may be changed.

The man with a host of friends who slaps on the back everybody he meets is regarded as the friend of nobody.

No one who desires to become good will become good unless he does good things.

True happiness comes from gaining insight and growing into your best possible self. Otherwise all you're having is immediate gratification pleasure, which is fleeting and doesn't grow you as a person.

The senses are gateways to the intelligence. There is nothing in the intelligence which did not first pass through the senses.

...for all men do their acts with a view to achieving something which is, in their view, a good.

The virtue of justice consists in moderation, as regulated by wisdom.