Thich Nhat Hanh said this quote

If you do not know how to take care of yourself, and the violence in you, then you will not be able to take care of others. You must have love and patience before you can truly listen to your partner or child. If you are irritated you cannot listen. You have to know how to breath mindfully, embrace your irritation and transform it. Offer ONLY understand and compassion to your partner or child - This is the true practice of love.