In the kind of thinking which everywhere tries to bring original intuition to the fore that is, the pre and extrascientific life world, which contains within itself all actual life, including the scientific life of thought, and nourishes it as the source of all technical constructions of meaning in this kind of thinking one of the greatest difficulties is that one must choose the naive way of speaking of everyday life, but must also use it in a way which is appropriate for rendering evident what is shown.