A collection of what once were called quotations.
Astoria-Megler Bridge on the Columbia River, Astoria, Oregon (© Dan Mihai/Getty Images)
Reliefs in the ancient Persian city of Persepolis, Iran (© Ozbalci/Getty Images)
A big percentage of so-called experts today only know how to configure tools, but they understand nothing about how things work at the deeper level. This is a real challenge and a big problem for the future.