Othello 4.2-4.3

"I durst, my lord, to wager she is honest,\Lay down my soul at stake. If you think other,/ Remove your thought. It doth abuse your bosom.\ If any wretch have put this in your head,\Let heaven requite it with the serpent's curse,\For if she be not honest, chaste, and true,\There's no man happy. The purest of their wives is foul as slander." (4.2.12-19)

Emilia is speaking to Othello, telling him that he's an idiot for thinking so wrongly of Desdemona. She says that if Desdemona is unfaithful, then all men must have cheating wives, since she is the purest of all, which is a really interesting way to get her message across.

procreants: (adj) procreating

cozening: (v) to decieve