To Test Whether You Have Learned An

Nature Does Not Care What We Call It, She Just Keeps On Doing It.

To Test Whether You Have Learned An Idea Or A Definition, Rephrase What You Just Learned Without Using The New Word.

... It Is Impossible To Explain Honestly The Beauties Of The Laws Of Nature In A Way That People Can Feel, Without Their Having Some Deep Understanding Of Mathematics. I Am Sorry, But This Seems To Be The Case.

There Is No Learning Without Having To Pose A Question. And A Question Requires Doubt.

I'm Going To Play With Physics, Whenever I Want To, Without Worrying About Any Importance Whatsoever.