The Best Theory Is Inspired By Practice.

Programmers Waste Enormous Amounts Of Time Thinking About, Or Worrying About, The Speed Of Noncritical Parts Of Their Programs, And These Attempts At Efficiency Actually Have A Strong Negative Impact When Debugging And Maintenance Are Considered. We Should Forget About Small Efficiencies, Say About 97% Of The Time: Premature Optimization Is The Root Of All Evil. Yet We Should Not Pass Up Our Opportunities In That Critical 3%.

I Think People Who Write Programs Do Have At Least A Glimmer Of Extra Insight Into The Nature Of God... Because Creating A Program Often Means That You Have To Create A Small Universe

The Sun Comes Up Just About As Often As It Goes Down, In The Long Run, But This Doesn't Make Its Motion Random.

An Algorithm Must Be Seen To Be Believed.

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."