one unvarying price

conclusive argument, summary, last word

commonplace remark

same thing, one and the same thing

in a word, in an instant, in no time, suddenly, instantly, immediately

said when something disagreeable is said in jest

a word is enough to the wise, reasonable people readily take action on good advice

coincidence, a chance

secret, something said in confidence

incidentally

deep thought

secret matter, secret case, matter must be hidden