En anglais : "You can fool some of the people all of the time, and all of the people some of the time, but you can not fool all of the people all of the time"
En anglais : " A house divided against itself cannot stand."
En anglais : "When I hear anyone arguing for slavery, I feel a strong impulse to see it tried on him personally."
En anglais : "When I get ready to talk to people, I spend two thirds of the time thinking what they want to hear and one third thinking about what I want to say."
En anglais : "Give me six hours to chop down a tree and I will spend the first four sharpening the axe."