Read it through once

“But, do not believe,” said Darnay, upon whose ear the mournful voice struck with a reproachful sound, “that if my fortune were so cast as that, being one day so happy as to make her my wife, I must at any time put any separation between her and you, I could or would breathe a word of what I now say. Besides that I should know it to be hopeless, I should know it to be a baseness. If I had any such possibility, even at a remote distance of years, harboured in my thoughts, and hidden in my heart--if it ever had been there--if it ever could be there--I could not now touch this honoured hand.”