Einstein has demonstrated once and for all how experimental science can only reach relative truth and how absoluteness is unapproachable. And even in mathematics, too, where we imagine that exactness replaces approximation we shall find that absolute quantities are unattainable. It is impossible to mark with precision the fraction of a fraction of a fraction of a second which actually elapses before or after any given time-dimension which is read off the dial of a watch and thus falsifies our reading. It is equally impossible to measure with rigid certitude any dimension on the scale which shall not be a fraction of a fraction of a fraction of an inch shorter or longer than our supposed measurement. Nor has any scientific experiment yet arrived at an absolute zero in actuality but has merely approximated it.
-- Notebooks Category 7: The Intellect > Chapter 6 : Science > # 72
