The quality of mercy is not strained;
 It droppeth as the gentle rain from heaven
   Upon the place beneath. It is twice blest;
 It blesseth him that gives and him that takes:
 'T is mightiest in the mightiest; it becomes
   The throned monarch better than his crown;
 His sceptre shows the force of temporal power,
 The attribute to awe and majesty,
 Wherein doth sit the dread and fear of kings;
 But mercy is above this sceptred sway;
 It is enthroned in the hearts of kings,
 It is an attribute to God himself;
 And earthly power doth then show likest God's
 When mercy seasons justice. 
   Therefore, Jew,
 Though justice be thy plea, consider this,
 That, in the course of justice, none of us
 Should see salvation: we do pray for mercy;
 And that same prayer doth teach us all to render
 The deeds of mercy. I have spoke thus much
   To mitigate the justice of thy plea;
 Which if thou follow, this strict court of Venice
 Must needs give sentence 'gainst the merchant there.

From The Merchant of Venice (Act IV, Scene I.) Spoken in a court of law by Portia while she is disguised as a lawyer, Balthazar.