All who contribute to the overthrow of religion, or to the ruin of kingdoms and commonwealths, all who are foes to letters and to the arts which confer honour and benefit on the human race (among whom I reckon the impious, the cruel, the ignorant, the indolent, the base and the worthless), are held in infamy and detestation.

Men are so simple and yield so readily to the desires of the moment that he who will trick will always find another who will suffer to be tricked.

And when he is obliged to take the life of any one, to do so when there is a proper justification and manifest reason for it; but above all he must abstain from taking the property of others, for men forget more easily the death of their father than the loss of their patrimony.

Besides what has been said, people are fickle by nature; and it is a simple to convince them of something but difficult to hold them in that conviction; and, therefore, affairs should be managed in such a way that when they no longer believe, they can be made to believe by force.

All courses of action are risky, so prudence is not in avoiding danger (it's impossible), but calculating risk and acting decisively. Make mistakes of ambition and not mistakes of sloth. Develop the strength to do bold things, not the strength to suffer.

The greatest remedy that is used against a plan of the enemy is to do voluntarily what he plans that you do by force.

We must distinguish between those who depend on others, that is between those who to achieve their purposes can force the issue and those who must use persuasion. In the second case, they always come to grief, having achieved nothing; when, however, they depend on their own resources and can force the issue, then they are seldom endangered.