O philosophy, life's guide! O searcher-out of virtue and expeller of vices! What could we and every age of men have been without thee? Thou hast produced cities; thou hast called men scattered about into the social enjoyment of life.
[Lat., O vitae philosophia dux! O virtutis indagatrix, expultrixque vitiorum! Quid non modo nos, sed omnino vita hominum sine et esse potuisset? Tu urbes peperisti; tu dissipatos homines in societatum vitae convocasti.]
No sensible man (among the many things that have been written on this kind) ever imputed inconsistency to another for changing his mind.
[Lat., Nemo doctus unquam (multa autem de hoc genere scripta sunt) mutationem consili inconstantiam dixit esse.]
Let art, then, imitate nature, find what she desires, and follow as she directs. For in invention nature is never last, education never first; rather the beginnings of things arise from natural talent, and ends are reached by discipline.
All men have a feeling, that they would rather you told them a civil lie than give them a point blank refusal.... If you make a promise, the thing is still uncertain, depends on a future day, and concerns but few people; but if you refuse you alienate people to a certainty and at once, and many people too.
To be ignorant of what occurred before you were born is to remain always a child. For what is the worth of human life, unless it is woven into the life of our ancestors by the records of history?