O, let me not be mad, not mad, sweet heaven! Keep me in temper. I would not be mad. – William Shakespeare
O mischief, thou art swift to enter in the thoughts of desperate men! – William Shakespeare

O, let me not be mad, not mad, sweet heaven! Keep me in temper. I would not be mad. – William Shakespeare
O mischief, thou art swift to enter in the thoughts of desperate men! – William Shakespeare
When a father gives to his son, both laugh; when a son gives to his father, both cry. – William Shakespeare
For Tis the sport to have the engineer hoisted with his own petard. – William Shakespeare