A theme which can be explored and expressed in a variety of different ways, existentialism is a belief based on the free will of the individual which suggests that all future development is created as a result of their own self determined actions.
People who do strengthening and toning exercises in an effort to trim fat from a certain area -- thighs, hips, stomach, or arms -- have the wrong idea. Although these exercises can help firm muscles, if the targeted area still carries an extra layer of fat, it won't look much different.
Bodybuilders lower the leg press a couple of inches before ramming it back, placing extreme stress on the knees and never getting the most out of the exercise. Squats tax all the muscles in the legs - quads, hams, glutes, even calves. They also strengthen the hips and lower back, which help prevent injury.