抄録
Heidegger names his thought ways. This character is illuminated by means of formal indication. Formal indication is a method to approach the matter. It indicates only the form, not the content. If the content is given, our thought will be caught by the content, regard the content as self-evident, and lack the impulse to investigate more, which means the halt of the thought. If the form is indicated, on the contrary, our thought will be led to fulfil it, which means the start of the thought. At the starting point of our thought, however, the content which the form aims at and leads to is not given clearly. Ways which our thought will arrive at and follow are only foreseen. Without this foreseeing, however, our thought will not be motivated. Thought as ways will be regarded as the source to motivate our thought for the further investigation.