How to Achieve True Greatness Book

An interesting read that I am not quite sure what to make of. This guide to becoming a good courtier, which I assume translates to today's modern gentleman, focuses on some key attributes that anyone wishing to become a good courtier should strive towards pursuing. These attributes include being in top physical health (that is to say actively participating in "gymnastics"), attaining a deep understanding of the humanities (as it is at the core of civilization), strongly relying on justice (as it is the tool that sustains everyone including yourself), venerating beauty (as it is a divine source) and pursuing love in the rational (as oppose to love of the "senses").
While I do agree with nearly all the points made in this retelling of a long Italian renaissance night with courtiers, I find it hard to say any of this knowledge is ground-breaking. My edition is, after all, a truncated version of the original text and perhaps that is why I feel this book to be a bit underwhelming.