Emotions can be powerful forces. They can drive us to undertake heroic deeds and they can also lead us to make fools of ourselves. Once our feelings are engaged, they are difficult to control. Emotions can consume us. They can derail our rational thinking. They can cause us to justify all manner of sinful and hurtful behavior. They can blind us to facts about our situation we do not want to see. Our feelings can also compel us to say things that hurt people and which later cause us deep regret.
Wise people understand the danger of being driven by emotions. They know it is better to do what is right, than what they feel like doing. So they control their passions. They do not let them get out of control. If needed, they step back momentarily, or pause before speaking, or wait until another day before deciding, but they refuse to allow their feelings to dictate their actions.
Just because you think something does not mean you should say it! Just because something is true, does not mean it should be uttered publicly. If your emotions have been aroused in the passion of the moment, step back, get them back in your control, think carefully about your potential words and actions, then proceed. That is the pathway to a life without regret.