I hope that you will be under the protection of God, will succeed in rendering service to humanity and will always be a source of happiness to every heart. The best person is he who wins all hearts and is not the cause of grief to anyone. The worst of souls is he who causes hearts to be agitated and who becomes the cause of sadness. Always endeavor to make people happy and their hearts joyful so that you may become the cause of guidance to mankind. Proclaim the Word of God and diffuse the divine fragrances.
- ‘Abdu’l-Baha (Utterances of 'Abdu'l-Baha, Denver, Colorado, September 26, 1912; Mahmud’s Diary)