Man has two aspects: the physical, which is subject to nature, and the merciful or divine, which is connected with God. If the physical or natural disposition in him should overcome the heavenly and merciful, he is, then, the most degraded of animal beings; and if the divine and spiritual should triumph over the human and natural, he is, verily, an angel. The Prophets come into the world to guide and educate humanity so that the animal nature of man may disappear and the divinity of his powers become awakened. The divine aspect or spiritual nature consists of the breaths of the Holy Spirit.
- ‘Abdu’l-Baha (From a talk, 21 April 1912, Washington D.C; The Promulgation of Universal Peace: Talks Delivered by 'Abdu'l-Bahá during His Visit to the United States and Canada in 1912’)