Great Dijkstra quotes

Taken from his Dijkstra's interview video

• Computer science is no more about computers than astronomy is about telescopes.
• The competent programmer is fully aware of the limited size of his own skull. He therefore approaches his task in full humility and avoids clever tricks like the plague.
• We should not introduce errors through sloppiness but systematically keep them out.
• Program testing can convincingly show the presence of bugs but it is hopelessly inadequate to show their absence.
• Elegance is not a dispensable luxury but a factor that decides between success and failure (is it about Scala ?).

Its a nice video which also explains well why Alan Kay said that arrogance in CS is measured by nano-Dijkstras.