Right knowledge (samkit) means right vision. What does the wrong vision do? It will make one say, ‘this person caused me a loss. This person profited me. That person insulted me. That person hurt me. This person made me happy.’ There is no one out there giving you pain or pleasure! Indeed, it is all within you.
It is not good to talk about rude things you have done willingly or mistakenly. We have to forget those things after telling about it to someone virtues. Then we have another chance to correct us. Repeatedly reminding those things will give us lot of bad results. Instead it is better to talk about best things you have done.