Everyone knows that the fire from a little spark will increase and blaze ever higher as long as it finds wood to burn; yet without being quenched by water, but merely by finding no more fuel to feed on, it consumes itself, dies down, and is no longer a flame. Similarly, the more tyrants pillage, the more they crave, the more they ruin and destroy; the more one yields to them, and obeys them, by that much do they become mightier and more formidable, the readier to annihilate and destroy. But if not one thing is yielded to them, if, without any violence they are simply not obeyed, they become naked and undone and as nothing, just as, when the root receives no nourishment, the branch withers and dies.

source: "Discourse on Voluntary Servitude"