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• Controlling complexity is the essence of computer programming.
  • Software Tools (1976), p. 319 (with P. J. Plauger)

• The most effective debugging tool is still careful thought, coupled with judiciously placed print statements.
  • "Unix for Beginners" (1979)
• Everyone knows that debugging is twice as hard as writing a program in the first place. So if you're as clever as you can be when you write it, how will you ever debug it?
  • "The Elements of Programming Style", 2nd edition, chapter 2
• Do what you think is interesting, do something that you think is fun and worthwhile, because otherwise you won't do it well anyway.
  • An Interview with Brian Kernighan from the PC Report Romaniahttp://www.cs.cmu.edu/~mihaib/kernighan-interview/
• Advice to students: Leap in and try things. If you succeed, you can have enormous influence. If you fail, you have still learned something, and your next attempt is sure to be better for it. Advice to graduates: Do something you really enjoy doing. If it isn’t fun to get up in the morning and do your job or your school program, you’re in the wrong field.
  • "Leap In and Try Things: Interview with Brian Kernighan"http://www.harmonyatwork.in/blog/2009/10/leap-in-and-try-things-brian-kernighan/ from Harmony at Work bloghttp://www.harmonyatwork.in/blog/

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• First make it run, then make it run fast.
• If you haven't used grep, you've missed one of the simple pleasures of life. http://www.digitas.harvard.edu/cgi-bin/wiki/ken/GeekyStrings