Men generally decide upon a middle course, which is most hazardous, for they know neither how to be entirely good nor entirely bad.
Niccolo MachiavelliWhoever desires to found a state and give it laws, must start with assuming that all men are bad and ever ready to display their vicious nature, whenever they may find occasion for it.
Niccolo MachiavelliMen in general judge more by the sense of sight than by the sense of touch, because everyone can see but few can test by feeling. Everyone sees what you seem to be, few know what you really are; and those few do not dare take a stand against the general opinion.
Niccolo MachiavelliTherefore, 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.
Niccolo Machiavelli