When man casts even a cursory glance of reflection upon the question of the universe, he discovers it is very ancient. A Persian philosopher was looking up into the heavens, lost in wonder. He said, “I have written a book containing seventy proofs of the accidental appearance of the universe, but I still find it very ancient.” Bahá’u’lláh says, “The universe hath neither beginning nor ending.” He has set aside the elaborate theories and exhaustive opinions of scientists and material philosophers by the simple statement, “There is no beginning, no ending.” The theologians and religionists advance plausible proofs that the creation of the universe dates back six thousand years; the scientists bring forth indisputable facts and say, “No! These evidences indicate ten, twenty, fifty thousand years ago,” etc. There are endless discussions pro and con. Bahá’u’lláh sets aside these discussions by one word and statement. He says, “The divine sovereignty hath no beginning and no ending.” By this announcement and its demonstration He has established a standard of agreement among those who reflect upon this question of divine sovereignty; He has brought reconciliation and peace in this war of opinion and discussion. Briefly, there were many universal cycles preceding this one in which we are living. They were consummated, completed and their traces obliterated. The divine and creative purpose in them was the evolution of spiritual man, just as it is in this cycle. The circle of existence is the same circle; it returns. The tree of life has ever borne the same heavenly fruit.
(‘Abdu’l-Bahá, The Promulgation of Universal Peace, p. 219)