<noun.attribute> the singleness of his motives could not be questioned
the quality of concentrating on one central objective
<noun.attribute> his singleness of purpose
Singleness \Sin"gle*ness\, n. 1. The quality or state of being single, or separate from all others; the opposite of doubleness, complication, or multiplicity.
2. Freedom from duplicity, or secondary and selfish ends; purity of mind or purpose; simplicity; sincerity; as, singleness of purpose; singleness of heart.
Also firing up the conflict has been a 110-page study guide, "Sexuality: A Divine Gift," issued by a church headquarters unit. Several bishops have charged it ignores church standards of celibacy in singleness and sex only in marriage.