True law is right reason in agreement with nature; it is of universal application, unchanging and everlasting; it summons to duty by its commands, and averts from wrongdoing by its prohibitions.
O wretched man, wretched not just because of what you are, but also because you do not know how wretched you are!
Mine is the disaster, if disaster there be; and to be severely distressed at one's own misfortunes does not show that you love your friend, but that you love yourself.
In a republic this rule ought to be observed: that the majority should not have the predominant power.
It shows nobility to be willing to increase your debt to a man to whom you already owe much.
In a disordered mind, as in a disordered body, soundness of health is impossible.