Those wars are unjust which are undertaken without provocation. For only a war waged for revenge or defence can actually be just.

Every stage of human life, except the last, is marked out by certain and defined limits; old age alone has no precise and determinate boundary.

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?

There is no one so old as to not think they may live a day longer.

Lay down this rule of friendship: neither ask nor consent to do what is wrong. The plea, 'for friendship's sake,' is a discreditable one, and should not be admitted for a moment. We should ask from friends and do for friends only what is good.

It is certain that memory contains not only philosophy, but all the arts and all that appertain to the use of life.

Care must be taken that the punishment does not exceed the offence.