Before entering any occupation, diligent preparation is to be undertaken.
In omnibus autem negotiis priusquam adgrediare, adhibenda est praeparatio diligens.
Original text (Latin)
Notes from Wikiquote
Book I, section 73
Original text (Latin)
I never cease urging peace, which, however unfair, is better than the justest war in the world.
Every one is least known to himself, and it is very difficult for a man to know himself.
Quote text and notes from Wikiquote: Cicero (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.