A quotation from the full collection:
Almost anything in software can be implemented, sold, and even used given enough determination. There is nothing a mere scientist can say that will stand against the flood of a hundred million dollars. But there is one quality that cannot be purchased in this way—and that is reliability. The price of reliability is the pursuit of the utmost simplicity. It is a price which the very rich find most hard to pay.
—C.A.R. Hoare in The Emperor’s Old Clothes (This is an expanded version of a shorter, more common quotation.)