Tex Has Found At Least One Bug

Programming Is Legitimate And Necessary Academic Endeavour.

When Certain Concepts Of Tex Are Introduced Informally, General Rules Will Be Stated; Afterwards You Will Find That The Rules Aren't Strictly True. In General, The Later Chapters Contain More Reliable Information Than The Earlier Ones Do. The Author Feels That This Technique Of Deliberate Lying Will Actually Make It Easier For You To Learn The Ideas. Once You Understand A Simple But False Rule, It Will Not Be Hard To Supplement That Rule With Its Exceptions.

... The Designer Of A New System Must Not Only Be The Implementor And The First Large-scale User; The Designer Should Also Write The First User Manual. ... If I Had Not Participated Fully In All These Activities, Literally Hundreds Of Improvements Would Never Have Been Made, Because I Would Never Have Thought Of Them Or Perceived Why They Were Important.

People Who Are More Than Casually Interested In Computers Should Have At Least Some Idea Of What The Underlying Hardware Is Like. Otherwise The Programs They Write Will Be Pretty Weird.

The Book Dynamic Programming By Richard Bellman Is An Important, Pioneering Work In Which A Group Of Problems Is Collected Together At The End Of Some Chapters Under The Heading "exercises And Research Problems," With Extremely Trivial Questions Appearing In The Midst Of Deep, Unsolved Problems. It Is Rumored That Someone Once Asked Dr. Bellman How To Tell The Exercises Apart From The Research Problems, And He Replied: "if You Can Solve It, It Is An Exercise; Otherwise It's A Research Problem."