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It is good to love God for hope of reward, but it is better to love God for love's sake; and the prayer goes: O Lord, I do not want wealth nor children nor learning. If it be Thy will, I shall go from birth to birth. But grant me this, that I may love thee without the hope of reward 'love' unselfishly for love's sake.

Swami Vivekananda (2015). “Swami Vivekanand's Chicago Speech: Swami Vivekananda’s Speech At World Parliament Of Religion, Chicago”, p.12, editionNEXT.com
It is good to love God for hope of reward, but it is better to love God for love's sake; and the prayer goes: O Lord, I do not want wealth nor children nor learning. If it be Thy will, I shall go from birth to birth.