To say that... behaviors have different 'meanings' is only another way of saying that they are controlled by different variables.
B. F. SkinnerWe admire people to the extent that we cannot explain what they do, and the word 'admire' then means 'marvel at.'
B. F. SkinnerA vast technology has been developed to prevent, reduce, or terminate exhausting labor and physical damage. It is now dedicated to the production of the most trivial conveniences and comfort.
B. F. Skinner