Principles stand the test of time. Trends, similar to fads, come and go. Principles are fundamental truths that serve as the foundation for systems of belief or behavior. Trends are the directions in which things develop or change.

In martial arts — and life in general — time and trust are two of the major differences between principles and trends. Some trends can be good, but it's principles that most often help you live a life with greater pride and fulfillment.

Tim Hawk joins Tim Hoover and Steve Mittman to discuss these things and more.