It is instinct which recalls the criminal--it is instinct (where highly organized reasoning is absent) which gives the criminal his feeling of danger, his fear of wrong.
At every first adventure, then, into some untried evil, the mind wavers.
The clock of thought ticks out its wish and its denial.

To those who have never experienced such a mental dilemma, the following will appeal on the simple ground of revelation.
When Hurstwood put the money back, his nature again resumed its ease and daring.

No one had observed him.

He was quite alone.

No one could tell what he wished to do.