Corruptio optimi pessima=--The corruption of the best is the worst.
Optimi consiliarii mortui=--The best counsellors are the dead.
And O, that corruption of the incorruptible spirit is worse than the corruption of the mortal flesh, corruptio optimi pessima!
Some things, if they fail in one use, they are good for another, but the best things are not so,—Corruptio optimi pessima.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "optimi" in a variety of sentences. We hope that you will now be able to make sentences using this word.