Not just speechify

Found this quote in a book I bought recently, and loved it. Seems you can easily replace math with programming and still be correct :)

People do acquire a little brief authority by equipping themselves with jargon: they can pontificate and air a superficial expertise. But what we should ask of educated mathematicians is not what they can speechify about, nor even what they know about the existing corpus of mathematical knowledge, but rather what can they do with their learning and whether they can actually solve mathematical problems arising in practice. In short, we look for deeds not words. -- J. Hammersley