I received Audels Carpenters and Builders Guide, written in 1923, for Christmas.  Although the software we build usually doesn't have the permanence of other engineering disciplines, the following quote from the first volume seems appropriate nonetheless...

When we build, let us think that we build forever.  Let it not be for present delight nor for present use alone.  Let it be such work as our descendants will thank us for; and let us think, as we lay stone on stone, that a time is to come when those stones will be held sacred because our hands have touched them, and that men will say, as they look upon the labor and wrought substance of them, "See! This our father did for us."  - John Ruskin

Happy holidays,
Billy