Whenever you look at a piece of work and you think the fellow was crazy, then you want to pay some attention to that. One of you is likely to be, and you had better find out which one it is. It makes an awful lot of difference.

Charles F. Kettering (1876-1958) American inventor, engineer, researcher, businessman

Comment (1930)
    (Source)

As attributed by Francis Davis, inventor of power steering.