This quote by Tacitus speaks to the concept that a bad peace is even worse than war. He is suggesting that a peace that is not beneficial to all celebrations included can be more harmful than a war. This is due to the fact that a bad peace can result in more dispute, as the parties involved might not be satisfied with the outcome and may look for to gain more. A bad peace can likewise lead to an absence of trust between the parties, as they might feel that they were taken advantage of or that their interests were not taken into account. This can result in more instability and discontent, which can be even worse than the war itself. Tacitus is suggesting that it is much better to have an excellent peace than a bad one, as it can result in more stability and trust between the parties.
"When the principles that run against your deepest convictions begin to win the day, then the battle is your calling, and peace has become sin. You must at the price of dearest peace lay your convictions bare before friend and enemy with all the fire of your faith"
