ανδρεια is required to counter faint-heartedness, laziness, and over-attachment to pleasure. It involves an attitude of ‘taking the fight to the enemy’, where the enemy is ones own foolishness, vice and ignorance. Misused ανδρεια manifests itself as anger, aggression and military vain-glory. Properly used it involves self-directed, constructive anger.
ανδρεια also manifests itself as a willingness for, even a love of, toil and effort. It is one of the four cardinal virtues, along with prudence (phronesis), temperance (sophrosyne), and justice (dikaiosyne). Aristotle noted that, as with other virtues, ανδρεια is an optimal level (a “mean”) between the extremes of too little courage (cowardliness) and too much courage (rashness). 
The Andreia Philosophy contains three pillars: Mind, Body, and Spirit. Three purposes. Three paths that develop together.
“If you know the way broadly you will see it in all things.”
You may have a single mastery that touches each pillar of Body, Mind, and Spirit. You may have a path for each pillar, and you can even have major and minor paths for each pillar.
The content provided here is meant to be stolen by the reader and adopted into their personal philosophies. None of this content is meant to be philosophical laws demanded to be followed. Instead, content here is aimed to be philosophical prescriptions that an individual can decide to adopt into their personal codes, disregarding what does not help them on their path.
The Andreia Philosophy Code
The Andreia Philosophy code is in progress. The code will be free for whoever wants it. It is based on the creed Fulfillment Through Accomplishment. It will serve as a Andreia Philosophy reference for Andreians and others to take from to build their philosophies, which are the ways they live their lives, whether conscious of it or not.
The goal of this project is to make the philosophy available to all who may find it useful.