Styles provide more than just techniques: They also offer training methods, theories, and mental attitudes. Learning these factors allows a student to experience a system in what Lee called its "totality".
Only through learning a system completely will an artist be able to, "absorb what is useful," and discard the remainder.
Real combat training situations allow the student to learn what works, and what doesn't.
The critical point of this principle is that the choice of what to keep is based on personal experimentation with various opponents over time.
It is not based on how a technique may look or feel, or how precisely the artist can mimic tradition.
In the final analysis, if the technique is not beneficial in combat, it is discarded.
Lee believed that only the individual could come to understand what worked; based on critical self analysis, and by, "honestly expressing oneself, without lying to oneself."
