“Program testing can be used to show the presence of bugs, but never to show their absence!”— Edsger W. Dijkstra
“The real test of a shorthand system is the ability of the writer to read back his own notes readily and accurately.”— John Robert Gregg
“The only way to test a hypothesis is to look for all the information that disagrees with it.”— John W. Campbell
“The other thing that's characteristic of specifications is that they are awfully hard to get right, and they have to be mercilessly tested.”— James J. Horning
“If you want to test the temperature of the water, you don't jump in with both feet.”— E. Joseph Cossman
“We can't just teach to the test. We have to teach our children how to think critically and solve problems.”— Arne Duncan
“A champion shows who he is by what he does when he's tested. When a person gets up and says 'I can still do it,' he's a champion.”— Evander Holyfield
“Almost any question can be answered, cheaply, quickly and finally, by a test campaign.”— Claude C. Hopkins