― A.C. Bhaktivedanta Swami Prabhupāda, Bhagavad-Gita As It Is

“Such deluded persons, symptomatically, dwell in dualities of dishonor and honor, misery and happiness, woman and man, good and bad, pleasure and pain, etc., thinking, "This is my wife; this is my house; I am the master of this house; I am the husband of this wife." These are the dualities of delusion. Those who are so deluded by dualities are completely foolish and therefore cannot understand the Supreme Personality of Godhead.”