He's mad, that trusts in the tameness of a wolf, a horse's health, a boy's love, or a whore's oath.

--FOOL, King Lear, Act III, scene vi

How sharper than a serpent's tooth it is
To have a thankless child!

--KING LEAR, King Lear, Act I, scene iv

Wisdom and goodness to the vile seem vile:
Filths savour but themselves.

--ALBANY, King Lear, Act IV, scene ii

The art of our necessities is strange,
And can make vile things precious.

--KING LEAR, King Lear, Act III, scene ii

Time shall unfold what plighted cunning hides:
Who cover faults, at last shame them derides.

--CORDELIA, King Lear, Act I, scene i

The gods are just, and of our pleasant vices
Make instruments to plague us.

--EDGAR, King Lear, ACT V, scene iii

This is the excellent foppery of the world, that, when we are sick in fortune, often the surfeit of our own behaviour, we make guilty of our disasters the sun, the moon, and the stars; as if we were villains by necessity, fools by heavenly compulsion, knaves, thieves, and treachers by spherical predominance, drunkards, liars, and adulterers by an enforced obedience of planetary influence; and all that we are evil in, by a divine thrusting on: an admirable evasion of whore-master man, to lay his goatish disposition to the charge of a star!

--EDMUND, King Lear, Act I, scene ii

Through tatter'd clothes small vices do appear;
Robes and furr'd gowns hide all. Plate sin with gold,
And the strong lance of justice hurtless breaks;
Arm it in rags, a pigmy's straw does pierce it.

--KING LEAR, King Lear, Act IV, scene vi

Come not between the dragon and his wrath.

--KING LEAR, King Lear, Act I, scene i