(link) FOUNTAIN: How to Build a Concrete Fountain ~ Create a stone-lined garden pond, then carve a waterfall out of a block of stone using basic power and hand tools. The technique is simple, even for beginners. This is a STEP BY STEP TUTORIAL GUIDE
"Parallel lines have a lot in common, but they never meet. You might think that's sad. But every other pair of lines meets once and then drifts apart forever. Which is pretty sad too." a little bit of mathematical insight about life stuff.