If we are going to make a mark (key 21), it might as well be a meaningful one.

In a world in which the price of calculation continues to decrease rapidly, but the price of theorem proving continues to hold steady or increase, elementary economics indicates that we ought to spend a larger and larger fraction of our time on calculation.

An approximate answer to the right problem is worth a good deal more than an exact answer to an approximate problem.

It's better to solve the right problem approximately than to solve the wrong problem exactly.

There is no data that can be displayed in a pie chart, that cannot be displayed BETTER in some other type of chart.

Far better an approximate answer to the right question, which is often vague, than the exact answer to the wrong question, which can always be made precise.

I know of no person or group that is taking nearly adequate advantage of the graphical potentialities of the computer.