In http://www.javalobby.org/java/forums/t83400.html, Ricky Clarkson discussed 3 levels of eating by three questions which were asked by Douglas Adams:
1) How can we eat?
2) Why do we eat?
3) Where shall we have lunch?

And then Ricky introduced these three questions into programming:
1. How can we program/Survival?
2. Why do we program/Inquiry?
3. Where shall we program/Sophistication?

Welcome, different people at different levels see things differently.