“For me it is so clear that measurement is irrelevant. I mean that the word 'measurement' should not be in the theory.”— John Stewart Bell
“I think that the word 'measurement' has been so abused that it is better to just get it out of the theory.”— John Stewart Bell
“Not everything that can be counted counts, and not everything that counts can be counted.”— George Gallup
“The concept of 'measurement' becomes so fuzzy on reflection that it is quite surprising that we can have a theory based on it.”— John Stewart Bell
“The 'Problem of Measurement' is the problem of reconciling the dualistic nature of the orthodox theory.”— John Stewart Bell
“The choice of a logarithmic base corresponds to the choice of a unit for measuring information. If the base 2 is used the resulting units may be called binary digits, or more briefly bits.”— Claude Shannon
“The type of scale is defined by the group of transformations that leaves the scale form invariant.”— Stanley Smith Stevens
“To close the achievement gap, we have to be honest about it. We have to be willing to measure it.”— Roderick Paige
“Can we define a quantity that will measure, in some sense, how much information is 'produced' by such a process, or better, at what rate information is produced?”— Claude Shannon
“What you measure affects what you do. If you don't measure the right thing, you don't do the right thing.”— Joseph Stiglitz
“When you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind.”— Lord Kelvin