Your thoughts about halloween

Why does lewis thomas express concern about what we would say to beings from another planet

[he] let his gaze wander to the swirling water of the stream racing madly beneath his feet. a piece of dancing driftwood caught his attention and his eyes followed it down the current. how slowly it appeared to move! what a sluggish stream! what contrasting words are used to describe the stream in this passage?

How now how now chop logic what is this proud and i you and i you not and yet not proud mistress minion you me no nor proud me no proud