It is really just as bad technique to make a measurement more accurately than is necessary as it is to make it not accurately enough.

- Arthur David Ritchie

But it seems to me equally obvious that the orderliness is not all-pervasive. There are streaks of order to be found among the chaos, and the nature …

- Arthur David Ritchie

The first thing the reasonable man must do is to be content with a very little knowledge and a very great deal of ignorance. The second thing he must…

- Arthur David Ritchie

The fact that the regions of nature actually covered by known laws are few and fragmentary is concealed by the natural tendency to crowd our experien…

- Arthur David Ritchie

That our knowledge only illuminates a small corner of the Universe, that it is incomplete, approximate, tentative and merely probable need not concer…

- Arthur David Ritchie

The material universe must consist ... of bodies ... such that each of them exercises its own separate, independent, and invariable effect, a change …

- Arthur David Ritchie