Note 142 — Chapter XIII
Reading edition
"Extemporaneous," Latin, ex, from; and tempus, time, at the same time, or from the same time. Extemporaneous discourse is when the thought and the expression in which it is clothed occur at the time it is uttered, or without premeditation of both thought and language. "Improvisation" means the same thing, but it is specially applied to the act of making poetry or performing music extemporaneously, that is, without prevision of what one is to say or sing. Rapid conversation is of the same nature. So is an instantaneous and unpremeditated answer to a question.