A just war is better than an unjust peace
Fighting between countries for a fair and good cause is better than no fighting in a situation that is unfair.
Comparisons are odious
Comparison (especially of people) is not productive and can have unpleasant consequences. People should be judged on their own merits.
Fair exchange is no robbery
Swapping one thing fairly in return for another is not the same as stealing.
Give credit where credit is due
The implication is that even if we are reluctant to praise someone, we should do so if the praise is deserved.
Give the devil his due
We should admit the good qualities of even a bad or undeserving person.
Ignorance of the law is no excuse
It is no defence to say that we didn't know that something we did was illegal.
There are two sides to every question
In any dispute or discussion, we should acknowledge that people have different points of view.
There's one law for the rich, and another for the poor
The legal system treats people with money better than people without money.