Watson, when the old machinery fails entirely, we must scrap it and build anew.
Watson, do not strike the match until the chemical formula is perfectly balanced in your mind.
The telegram is written, Watson. It is time to send it and set the gears in motion.
Watson, tread softly; a premature step in this fog will alert the suspect before we are ready.
We must dismantle the entire clockwork mechanism, Watson. Half-measures will not solve this case.
The evidence is clear, Watson; the old theory has dissolved like acid on copper.
The case is solved, Watson. Now, secure the locks and document the final ledger.