The happiness of one's own heart alone cannot satisfy the soul; one must try to include, as necessary to one's own happiness, the happiness of others.
Never be petty. Do not feed resentments against anyone. I prefer good-hearted sinners to so called good people who are intolerant and devoid of compassion. Being spiritual is to have an open mind, understand and forgive, and be friends with everyone.
In your heart must well that sympathy which soothes away all pains from the hearts of others.