I Try To Learn Certain Areas Of

Beware Of Bugs In The Above Code; I Have Only Proved It Correct, Not Tried It.

The Hardest Thing Is To Go To Sleep At Night, When There Are So Many Urgent Things Needing To Be Done. A Huge Gap Exists Between What We Know Is Possible With Today's Machines And What We Have So Far Been Able To Finish.

An Algorithm Must Be Seen To Be Believed.

Tex Has Found At Least One Bug In Every Pascal Compiler It's Been Run On, I Think, And At Least Two In Every C Compiler

...one Of The Most Important Lessons, Perhaps, Is The Fact That Software Is Hard. From Now On I Shall Have Significantly Greater Respect For Every Successful Software Tool That I Encounter. During The Past Decade I Was Surprised To Learn That The Writing Of Programs For Tex And Metafont Proved To Be Much More Difficult Than All The Other Things I Had Done (like Proving Theorems Or Writing Books). The Creation Of Good Software Demand A Significiantly Higher Standard Of Accuracy Than Those Other Things Do, And It Requires A Longer Attention Span Than Other Intellectual Tasks.