Related:

• Hackers do it bottom-up.
• Programmers do it bottom-up.
• middle-out implementation See bottom-up implementation.
• Infant care has to be learned from the bottom up.
• fat electrons: n. Old-time hacker David Cargill's theory on the causation of computer glitches.
  Your typical electric utility draws its line current out of the big generators with a pair of coil taps located near the top of the dynamo....
• Taking out without putting in is the quickest way to the bottom, for the course is never up!
• The bottom-up approach always gets me buggered. -- Sidney J. Hurtubise
• Hackers stay up longer.
• I do not participate in any sport with ambulances at the bottom of a hill. -- Erma Bombeck