O Son of Spirit! My first counsel is this: Possess a pure, kindly and radiant heart, that thine may be a sovereignty ancient, imperishable and everlasting.
Bahá'u'lláhNor shall the seeker reach his goal unless he sacrifice all things. That is, whatever he has seen, and heard, and understood (before), all must he set at naught, that he may enter the Realm of the Spirit, which is the City of God.
Bahá'u'lláhBend your minds and wills to the education of the peoples and kindreds of the earth, that haply the dissensions that divide it may, through the power of the Most Great Name, be blotted out from its face, and all mankind become the upholders of one Order, and the inhabitants of one City.
Bahá'u'lláh