Be kind and merciful to humanity

"Be kind and merciful to humanity, for all are His creatures; do not oppress them with your tongue, or hands, or in any other way. Always work for the good of mankind. Never unduly assert yourselves with pride over others, even those who are placed under you. Never use abusive language for anyone, even though he abuses you. Be humble in spirit, kind and gentle, and forgiving, sympathetic towards all and wishing them well, so that you should be accepted. There are many who pretend to be kind, gentle and forgiving, but inside they are wolves; there are many on the outside who look pure, but in their hearts they are serpents. You cannot be accepted in the presence of the Lord unless you are pure, both on the outside and inside" ('Kishti Nuh' by Mirza Ghulam Ahmad, the founder of Ahmadiyya Muslim Community)