'O Opportunity, thy guilt is great!
'Tis thou that executest the traitor's treason:
Thou set’st the wolf where he the lamb may get;
Whoever plots the sin, thou ‘point’st the season;
'Tis thou that spurn'st at right, at law, at reason;
And in thy shady cell, where none may spy him,
Sits Sin, to seize the souls that wander by him.
- The Rape of Lucrece by William Shakespeare