[Help With Atlas Shrugged Quote]

Thank you very much sir.  I will start reviewing that part of the book.  I was starting to wonder if I was imagining things, because when I was searching through my pdf version, I couldn't find anything.

[Help With Atlas Shrugged Quote]

Hello,

I am writing a paper on philosophy and I remember something from Atlas Shrugged to the affect of:

Study two things, philosophy to know how the world should be and physics to know how it is.

or

We study philosophy so that we may know how to think, and we study physics so we may know what to think.

 

Can anybody help me find where the quote comes from?  I can't find it anywhere.