To get at the

To get at the meaning of a statement the logical positivist asks, What would the world be like if it were true? The operationist asks, What would we have to do to come to believe it? For the pragmatist the question is, What would we do if did believe it?
Abraham Kaplan

In addition to the

In addition to the social pressures from the scientific community there is also at work a very human trait of individual scientist. I call it the law of the instrument , and it may be formulated as follows: Give a small boy a hammer, and he will find that everything he encounters needs pounding. It comes as no particular surprise to discover that a scientist formulates problems in a way which requires for their solution just those techniques in which he himself is especially skilled.
Abraham Kaplan