‘Time’ is an important matter of philosophy and of life. The creation and change of the nature and the process of history occur in the passage of time, and in the regard that the process of life is in charge of the four phases of life (birth, old age, sickness, and death), time lies in the hub of the universe. However, time is difficult to understand even if there is no mention of Augustin. Moreover, time associated with life, namely time and tide, indeed is not only an abstruse subject but also an awkward subject. Nevertheless, in that no one can escape time, this is a matter associated with intrinsic nature of human life. If we turn a blind eye to this matter, in other words, if we stay with the customary interpretation to ease the burden of self-explanation instead of going through an intrinsic interpretation of oneself, we will suffer from “downfall”(Ruinanz) and “deficiency in oneself”(Sichselbstfehlen). Therefore, to get away from this kind of interpretation is the way to finding existence, and in this context, hermeneutics through self-explanation can actualize one’s task only on the way to dissolution.
As we are becoming an aging society recently, the matter of ‘aging’(Alterwerden) is becoming major sociological, psychological and philosophical object of concern. Becoming an object of concern signifies that although this is a ‘problem’, this has been ingrained as fate(常數, Konstante) in our life or social life. Therefore, philosophy being interested in this new reality is reasonable. This paper contains a meaning of self-examination of philosophy which is acclimatizing to this new reality.