According to Taylor Branch's Parting the Waters, during Bayard Rustin's orchestration of the 1963 March on Washington he kept saying, "If you want to organize anything, assume that everybody is absolutely stupid."
Pretty good advice for teaching, too.
As is Rustin's follow-up: "And assume yourself that you're stupid."
This [blog] is my Savings Bank. I grow richer because I have somewhere to deposit my earnings; and fractions are worth more to me because corresponding fractions are waiting here that shall be made integers by their addition. —Emerson, Journal (1834)
You must collect things for reasons you don't yet understand.