Although deceit is detestable in all other things, yet in the conduct of war it is laudable and honorable; and a commander who vanquishes an enemy by stratagem is equally praised with one who gains victory by force.
Never do an enemy a small injury.
Though fraud in all other actions be odious, yet in matters of war it is laudable and glorious, and he who overcomes his enemies by stratagem is as much to be praised as he who overcomes them by force.
We must bear in mind, then, that there is nothing more difficult and dangerous, or more doubtful of success, than an attempt to introduce a new order of things in any state. For the innovator has for enemies all those who derived advantages from the old order of things, whilst those who expect to be benefited by the new institutions will be but lukewarm defenders.
For he who innovates will have for his enemies all those who are well off under the existing order of things, and only lukewarm supporters in those who might be better off under the new.
With difficulty he is beaten who can estimate his own forces and those of his enemy.
Never do your enemy a minor injury.
A prince is also esteemed when he is a true friend and a true enemy.
The reformer has enemies in all who profit by the old order, and only lukewarm defenders in all those who would profit by the new order.
The greatest remedy that is used against a plan of the enemy is to do voluntarily what he plans that you do by force.
The innovator has for enemies all who have done well under the old, and lukewarm defenders in those who may do well under the new.
I hold it to be a proof of great prudence for men to abstain from threats and insulting words toward anyone, for neither diminishes the strength of the enemy.