As the kids return to school, remember: "The essence of mathematics is not to make simple things complicated, but to make complicated things simple." (Gudder)
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"We are sometimes a little at a loss, to know if we are doing just the right thing, and if we are doing it at the right time. Perhaps it would not be possible to find any one test which would apply to all subjects and all times. But I have met with one, in the form of a question, which may prove of use in reference to many things — and very often! I am sure that if I had properly used it — it would have prevented my doing many things, which I have had to regret after they have been done. It is this — in whatever engaged, ask the question, "How will this impact on eternity?"
Remember: the highest end of exploration is to bring the unfamiliar into your life.