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: it may be the beginning of knowledge, but you have scarcely, in your thoughts, advanced to the stage of science.


Popular Lectures and Addresses [1891-1894]

William Thomson Quotes

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...

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...

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...

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...