William Stanley Jevons Quote

There is little use in obtaining exact measurements of an effect unless we can also exactly measure its conditions.


The Principles of Science: A Treatise on Logic and Scientific Method, Book IV, Chapter XX (p. 441), Macmillan & Co Ltd. 1887


There is little use in obtaining exact measurements of an effect unless we can also exactly measure its conditions.

There is little use in obtaining exact measurements of an effect unless we can also exactly measure its conditions.

There is little use in obtaining exact measurements of an effect unless we can also exactly measure its conditions.

There is little use in obtaining exact measurements of an effect unless we can also exactly measure its conditions.