To keep your actions and your plans secret always has been a very good thing . .. Marcus Crassus said to one who asked him when he was going to move the army: 'Do you believe that you will be the only one not to hear the trumpet?
But in Republics there is a stronger vitality, a fiercer hatred, a keener thirst for revenge. The memory of their former freedom will not let them rest; so that the safest course is either to destroy them, or to go and live in them.
I hope and hoping feeds my pain
I weep and weeping feeds my failing heart
I laugh but the laughter does not pass within
I burn but the burning makes no mark outside.
One of the great secrets of the day is to know how to take possession of popular prejudices and passions, in such a way as to introduce a confusion of principles which makes impossible all understanding between those who speak the same language and have the same interests.
For a prince should have two fears: one, internal concerning his subjects; the other, external, concerning foreign powers. From the latter he can always defend himself by his good troops and friends; and he will always have good friends if he has good troops.
Therefore, a prudent ruler ought not to keep faith when by so doing it would be against his interest, and when the reasons which made him bind himself no longer exist. If men were all good, this precept would not be a good one; but as they are bad, and would not observe their faith with you, so you are not bound to keep faith with them.