"But life is very short and anxious for those who forget the past, neglect the present and fear the future. When they come to an end of it, the poor wretches realize too late that for all this time they have been preoccupied in doing nothing." Seneca
Lady Macbeth:
Why did you bring these daggers from the place?
They must lie there. Go carry them, and smear
The sleepy grooms with blood.
Macbeth:
I'll go no more.
I am afraid to think what I have done;
Look on't again I dare not.
Lady Macbeth:
Infirm of purpose!
Give me the daggers. The sleeping and the dead
Are but as pictures; 'tis the eye of childhood
That fears a painted devil.
Macbeth Act 2, scene 2, 45–52