Quotation from: The Secret Agent

Written by: Joseph Conrad

The anarchist did not stir. An inward laugh of derision uncovered not
only his teeth but his gums as well, shook him all over, without the
slightest sound. Chief Inspector Heat was led to add, against his better
judgment:

"Not yet. When I want you I will know where to find you."

Those were perfectly proper words, within the tradition and suitable to
his character of a police officer addressing one of his special flock.
But the reception they got departed from tradition and propriety. It was
outrageous. The stunted, weakly figure before him spoke at last.