To know evil For to know evil, for them, was to know it not by pure intelligence by by experience. Charles Williams, The Mind of the Maker evil
To anticipate all the uses and abuses Success depends wholly on the anticipation and obviation of failure, and it is virtually impossible to anticipate all the uses and abuses to which a product will be subjected until it is in fact used and abused not in the laboratory but in real life. Hence, new products are seldom even near perfect, but we buy them and adapt to their form because they do fulfill, however imperfectly, a function that we find useful. Henry Petroski, The Evolution of Useful Things So that you can get feedback on it and make it betterThe most rewarding iterations productsiteration