Cicero: “After all, who is such a fool as to feel certain--however young he may be--that he will be alive in the evening?”

What a sorry state of servitude for a virtue--to be pandering to sensual pleasure!

Such acts of generosity are not to be so highly esteemed as those which are performed with judgment, deliberation, and mature consideration.

Again, there are certain duties that we owe even to those who have wronged us.

Accordingly, in encountering danger we should do as doctors do in their practice: in light cases of illness they give mild treatment; in cases of dangerous sickness they are compelled to apply hazardous and even desperate remedies.