Chapter 4. Imperative Programming Until now, most of the programs we’ve written have been pure, meaning that they never changed state. Whenever a function does something other than just … - Selection from Programming F# 3.0, 2nd Edition [Book]
“A man who tells lies … merely hides the truth
but a man who tells half-lies has forgotten where he put it.”
Claude Rains as Mr. Dryden in Lawrence of Arabia