An Algorithm Must Be Seen To Be

In Fact, My Main Conclusion After Spending Ten Years Of My Life Working On The Tex Project Is That Software Is Hard. It's Harder Than Anything Else I've Ever Had To Do.

The Whole Thing That Makes A Mathematician’s Life Worthwhile Is That He Gets The Grudging Admiration Of Three Or Four Colleagues.

Programs Are Meant To Be Read By Humans And Only Incidentally For Computers To Execute.

Any Inaccuracies In This Index May Be Explained By The Fact That It Has Been Prepared With The Help Of A Computer.

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.