This quote by Publius Flavius Vegetius Renatus is a reminder that peace is not something that can be taken for given. It is something that should be actively pursued and safeguarded. The quote recommends that in order to attain peace, one need to be prepared for war. This implies that a person must want to eliminate for peace if necessary. It also suggests that a person must be prepared to make sacrifices in order to keep peace. This might include sacrificing one's own convenience or security in order to secure the peace. The quote also indicates that a person need to be willing to take a stand against those who threaten peace. This could include withstanding oppressive routines or taking a stand against violence and oppression. Ultimately, this quote acts as a suggestion that peace is something that must be actively pursued and protected in order to be attained.
"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"