Las Leyes Diarias Robert Greene -
Si ya eres lector de Robert Greene, sabes que sus libros ( Las 48 leyes del poder , El arte de la seducción , Maestría , etc.) no se leen como novelas ligeras, sino como manuales profundos y a veces crudos sobre la naturaleza humana. Las leyes diarias es la herramienta perfecta para no abandonar ese aprendizaje.
Here’s a concise write-up for Las leyes diarias ( The Daily Laws ) by Robert Greene, aimed at a Spanish-speaking audience interested in personal growth, strategy, and mastery. Un compendio diario para dominar el arte del poder, la seducción y la estrategia las leyes diarias robert greene

To the previous commentator’s question: Does Groovy on Grails change things?
Well, first of all there’s also JRuby that is built on the Java platform. So you can have Ruby and RoR on Java directly. Then Groovy and Grails are there and provide similar capabilities. That changes things… but not in the way many of the old Java fogies may have anticipated: It validates DHH’s point of view in the strongest way possible. Dynamic languages are a powerful tool in any programmer’s arsenal–if you get exclusively attached to Java [1] and ignore dynamic languages, then do so at your own peril.
~~~
[1] The idea of getting exclusively attached to a particular language/platform is silly–they are just tools. Kill your ego. Open your mind and explore new technologies and techniques so you can use them when appropriate.