From a summer job I took, in Building Trades and Arts.
Learn to make cement by hand. Haul cinder blocks around. Learn the Pythagorean Theorem. Learn about geology. Haul rocks around. Learn never to call them just “rocks” in anyone’s hearing. Become less impressed with the Pyramids -- with enough manpower, you can build anything. Learn what “ashlar” means. Learn about how to polish walls. Wash powdered rock out of your hair for several days…