Physicians, when the cause of disease is discovered, consider that the cure is discovered.

Since an intelligence common to us all makes things known to us and formulates them in our minds, honorable actions are ascribed by us to virtue, and dishonorable actions to vice; and only a madman would conclude that these judgments are matters of opinion, and not fixed by nature.

There is, I know not how, a certain presage, as it were, of a future existence; and this takes the deepest root, and is most discoverable, in the greatest geniuses and most exalted souls.

What is dignity without honesty?

Enjoy the blessing of strength while you have it and do not bewail it when it is gone, unless, forsooth, you believe that youth must lament the loss of infancy, or early manhood the passing of youth. Life's race-course is fixed; Nature has only a single path and that path is run but once, and to each stage of existence has been allotted its own appropriate quality; so that the weakness of childhood, the impetuosity of youth, the seriousness of middle life, the maturity of old age.. each bears some of Nature's fruit, which must be garnered in its own season.

Not to know what happened before means to remain forever a child.

How great an evil do you see that may have been announced by you against the Republic? - Videtis quantum scelus contra rem publicam vobis nuntiatum sit?