"

It is beyond a doubt that all our knowledge begins with experience.

"

But although all our knowledge begins with experience, it does not follow that it arises from experience.

"

But, though all our knowledge begins with experience, it by no means follows that all arises out of experience.

"

That all our knowledge begins with experience there can be no doubt. For how should the faculty of knowledge be called into activity, if not by object...more

"

...[P]hysics... [is] the philosophy of nature, so far as it is based on empirical laws.