To utter a performative is not to make a statement, and therefore the utterance of a performative is neither true nor false.
发出履行性陈述并不是在做陈述,因此履行性陈述的发言既不真实也不虚假。
"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."