I hold it to be of great prudence for men to abstain from threats and insulting words towards any one, for neither the one nor the other in any way diminishes the strength of the enemy; but the one makes him more cautious, and the other increases his hatred of you, and makes him more persevering in his efforts to injure you
Niccolo MachiavelliNever lead your soldiers to battle if you have not first confirmed their spirit and known them to be without fear and ordered; and never test them except when you see that they hope to win.
Niccolo MachiavelliThen also pretexts for seizing property are never wanting, and one who begins to live by rapine will always find some reason for taking the goods of others, whereas causes for taking life are rarer and more quickly destroyed.
Niccolo MachiavelliAnd if such malignity is hidden for a time, it proceeds from the unknown reason that would not be known because the experience of the contrary had not been seen, but time, which is said to be the father of every truth, will cause it to be discovered.
Niccolo Machiavelli