Edsger Dijkstra

"Testing can show the presence of bugs but never their absence."

- Edsger Dijkstra

"If debugging is the process of removing software bugs, then programming must be the process of putting them in."

- Edsger Dijkstra

"Simplicity is prerequisite for reliability."

- Edsger Dijkstra

"Program testing can be used to show the presence of bugs, but never to show their absence!"

- Edsger Dijkstra