It is wholly absurd to maintain that an intellectual experiment is important only in proportion as it can be checked by measurement; for if this were so, there could be no exact geometrical proof. A line drawn on paper is not really a line but a more or less narrow strip, and a point a larger or smaller spot.


Translated by W.H. Johnston, The Philosophy of Physics, Chapter I (p. 27), W.W. Norton & Company, Inc. 1936


It is wholly absurd to maintain that an intellectual experiment is important only in proportion as it can be checked by measurement; for if this were ...

It is wholly absurd to maintain that an intellectual experiment is important only in proportion as it can be checked by measurement; for if this were ...

It is wholly absurd to maintain that an intellectual experiment is important only in proportion as it can be checked by measurement; for if this were ...

It is wholly absurd to maintain that an intellectual experiment is important only in proportion as it can be checked by measurement; for if this were ...