Quotes about deceit?

From the text:

King Hamlet's ghost on the deceit of Lady Gertrude.

Ay, that incestuous, that adulterate beast,
With witchcraft of his wit, with traitorous gifts—
O wicked wit and gifts, that have the power
So to seduce!—won to his shameful lust
The will of my most seeming-virtuous queen.
O Hamlet, what a falling-off was there!
From me, whose love was of that dignity
That it went hand in hand even with the vow
I made to her in marriage, and to decline
Upon a wretch whose natural gifts were poor
To those of mine.
But virtue, as it never will be moved,
Though lewdness court it in a shape of heaven,
So, lust, though to a radiant angel linked,
Will sate itself in a celestial bed,
And prey on garbage.