The fourth section attempts to identify potential lessons and new approaches ...La cuarta procura identificar lecciones posibles y nuevos planteamientos ...
... was actually serious, attempts to prove creationism by showing how ...... era realmente serio, procura probar creationism demostrando cómo ...
... main phenomena that economic theory struggles to explain nowadays.... principales fenómenos que la teoría económica se esfuerza por explicar actualmente.