"I had gone on a walk on a fine Sabbath afternoon. I had entered the Green [of Glasgow] by the gate at the foot of Charlotte Street—had passed the old washing-house. I was thinking upon the engine at t…"

"I have made an engine that shall not waste a single particle of steam."

"My great success in life has been owing to my having paid attention to every detail."

"I can think of nothing else than this machine."

"one of the most ingenious, simple pieces of mechanism I have contrived."