Abstract
The philosophy of Nietzsche has influenced the thought in modern times extremely, while there also exists extreme vagueness and contradiction underlying in his thought. In this thesis, a comprehensive understanding and reading is attempted and provided with the expectation that by the beginning from the viewpoint of metaphysics, Nietzsche’s thought in several aspects in the philosophical field can be unified, and a more systematic arrangement for his philosophy can also be carried out. As a successor to the world view of Heraclitus, Nietzsche considered the genuine feature of the world is Becoming, not continuous Being. Moreover, the genuine Being is agnostic. On the first side he pointed out the traditional philosophy and human languages are rife with the presupposition of being. On another hand, after negating Being, he went a step further to examine the construction and foundation of our knowledge. Then he claimed a kind of epistemology which proclaimed “there is no truth, only explanations”, and the role of knowledge was replaced by beliefs. Through the method of genealogical investigation, he also found out the supporter behind beliefs: evaluation, and proceeded to the next step to re-evaluate the values depended by our lives, finished the destructive work a value-skeptic. On the other hand, by the means of the world image constituted by force and drive, Nietzsche found a world view and value, which he thought to be able to justify and benefit life, namely the Will to Power. The Will to Power, however, is not a kind of metaphysics such as the traditional ones which seek to find out the true reality, it is a creative view of world and life, and through the art’s strength to beautify justifies a life, as well as makes people be able to face squarely to life and becoming with the Dionysos attitude, and reaches the goal to approve life in the maximum degree. Following this approach, this very route from becoming to the Will to Power also conveys the ultimate concern in Nietzsche’s philosophy to justify lives.