I've Never Been A Good Estimator Of

The Designer Of A New Kind Of System Must Participate Fully In The Implementation.

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%.

Meta-design Is Much More Difficult Than Design; It's Easier To Draw Something Than To Explain How To Draw It.

These Machines Have No Common Sense; They Have Not Yet Learned To "think," And They Do Exactly As They Are Told, No More And No Less. This Fact Is The Hardest Concept To Grasp When One First Tries To Use A Computer.

I Can’t Go To A Restaurant And Order Food Because I Keep Looking At The Fonts On The Menu.