We are forever asking Nature whether it has stopped beating its wife.

Mathematics is not yet capable of coping with the naïveté of the mathematician himself.

There is nothing more inspiring than having a mind unfold before you. Let people teach who have a calling. It is never just a job.

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?"

We are forever asking Nature whether it has stopped beating its wife.

We are caught up in a paradox, one which might be called the paradox of conceptualization. The proper concepts are needed to formulate a good theory, but we need a good theory to arrive at the proper concepts.

Experience is of particulars only.