Inductive reason, which alone makes man master of his environment, is an achievement; and when once born it must be reinforced by inhibiting the growth of other modes of knowledge. ↗
Apprentice is the beginner - the first years you work in a craft in the European sense you are an apprentice. That takes 3 or 4 years. Then you are a journeyman. You can go from one master to another and learn other tricks and other secrets. ↗
I will say that Edward Norton, who plays the scout master, would be a first-rate Eagle Scout. He's got all those techniques. If your plane crashes into the jungle somewhere, he would be the guy you would want to have with you. ↗