Man is in reality a spiritual being and only when he lives in the spirit is he truly happy.
Abdu'l-BaháAnd now one of the greatest and most fundamental principles of the Cause of God is to shun and avoid entirely the Covenant-breakers, for they will utterly destroy the Cause of God, exterminate His Law and render of no account all efforts exerted in the past.
Abdu'l-BaháStrive with all your hearts, raise up your voices and shout, until this dark world be filled with light.
Abdu'l-BaháAll down the ages we see how blood has stained the surface of the earth; but now a ray of greater light has come, man's intelligence is greater, spirituality is beginning to grow, and a time is surely coming when the religions of the world will be at peace. ...let us join together to hasten forward the Divine Cause of unity, until all humanity knows itself to be one family, joined together in love.
Abdu'l-Bahá