“One speck of chastity is greater than a hundred thousand years of worship and a sea of knowledge.” (‘Abdu’l-Bahá, cited in a letter
November 26, 2003, to the Bahá’ís of Iran from the Universal House of Justice)

“…[T]he Bahá’í conception of sex is based on the belief that chastity should be strictly practiced by both sexes, not only because it is in itself highly commendable ethically, but also due to its being the only way to a happy and successful marital life. Sex relationships of any form, outside marriage, are not permissible therefore…” (On behalf of Shoghi Effendi to an individual believer: Lights of Guidance, #1157)
“The Bahá’í teachings on sexual morality center on marriage and the family as the bedrock of the whole structure of human society and are designed to protect and strengthen that divine institution. Bahá’í law thus restricts permissible sexual intercourse to that between a man and the woman to whom he is married.” (Note #134 appended to The Kitáb-i-Aqdas)

“The Bahá’í Faith recognizes the value of the sex impulse…. The proper use of the sex instinct is the natural right of every individual, and it is precisely for this purpose that the institution of marriage has been established.” (Shoghi Effendi: Lights of Guidance, p. 344)