Page "Jeet Kune Do" Paragraph 27

JKD practitioners believe they should target their kicks to their opponent's shins, knees, thighs, and midsection like in wing chun.

These targets are the closest to the foot, provide more stability and are more difficult to defend against.

However, as with all other JKD principles nothing is " written in stone ".

If a target of opportunity presents itself, even a target above the waist, one could take advantage of the situation without feeling hampered by this principle.

Maintaining low kicks utilizes the principle of economy of motion by reducing the distance a kick must travel thus minimizing the " time " element.