Ambition

• Macbeth, (1.4): “Stars, hide your fires! Let not light see my black and deep desires.”
• Macbeth, (1.7): "I have no spur to prick the sides of my intent, but only vaulting ambition, which o'erleaps itself and falls on th' other—"
• Lady Macbeth (1.5): "Thou wouldst be great, Art not without ambition, but without the illness should attend it"
• Lady Macbeth (1.5): "That I may pour my spirits in thine ear, and chastise with the valour of my tongue all that impedes thee from the golden round" 
• Lady Macbeth (1.5): "O never shall sun that morrow see!" 
• Lady Macbeth (1.7): "Letting 'I dare not' wait upon 'I would', like the poor cat i'the adage?" 
• Lady Macbeth (1.7): "But screw your courage to the sticking place, and we'll not fail."