Granted that a definite thought and a definite molecular action in the brain occur simultaneously, we do not possess the intellectual organ, nor apparently any rudiments of an organ, which would enable us to pass by a process of reasoning from one to the other.
"The Old Riddle and the Newest Answer"
John Gerard
The relative molecular weights of hydrogen, some of the hydrocarbons, and iron, are such that tails composed of these molecules would behave just as do the actual tails observed and classified into these three types.
"A Text-Book of Astronomy"
George C. Comstock
But whether through the need of popular exposition, or the undisciplined imagination of the investigator himself, atoms have figured in the history of thought as round corpuscles of a grayish hue scurrying hither and thither, and armed with special appliances wherewith to lock in molecular embrace.
"The Approach to Philosophy"
Ralph Barton Perry