Generally in life, knowledge is acquired to be used. But school learning more often fits Freire's apt metaphor: knowledge is treated like money, to be put away in a bank for the future.

You can't think seriously about thinking without thinking about thinking about something.

A programming language is like a natural, human language in that it favors certain methaphors, images, and ways of thinking.

You can't teach people everything they need to know. The best you can do is position them where they can find what they need to know when they need to know it.