All argent fists—or, more properly, Seekers of the Argent fist, or Knights of the Argent fist—begin their training as monks or paladins. They then shift focus, moving from one to the other, until they have a basic mastery of both disciplines.
The Order of the Argent fist never recruits; only those who actively seek to join are considered for membership. The testing process is demanding: You must demonstrate martial skill, the mystical abilities of monk and paladin, a deep knowledge of the faith, and the ability to make difficult moral choices. Of the relatively few Purified who even petition for membership, perhaps one in ten succeeds. If you fail the entry tests due to lack of skill, you can try again, but a candidate who fails for lack of commitment or moral weakness can never make a second attempt.
Membership in the order is a life of ongoing training and service. When not actively questing or battling evil, you engage in training exercises and intensive study.
Few argent fists have time for any sort of life outside the order, but then, few of them want one. Argent fists must be well rounded, so you cannot simply focus on a single ability or skill set and expect to prosper. Choose weapons that complement your abilities and fighting style, and feats that enhance your class features, such as Extra Turning. While it is tempting to spread your ability increases across many scores, it is probably best to choose two or three to ignore in favor of others. If you have Weapon finesse and a good Dexterity, for instance, you can probably get away with leaving your Strength score relatively low. Your Intelligence will likely never be a strong suit, and you have enough hit points (and healing abilities) that even a slightly above-average Constitution might well be sufficient.