[A]nd then it occurred to me that a computer is a stupid machine with the ability to do incredibly smart things, while computer programmers are smart people with the ability to do incredibly stupid things. They are, in short, a perfect match. – Bill Bryson
We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. – C.A.R. Hoare, quoted by Donald Knuth