The previous chapter has shown that for both Husserl and Hume evidence is grounded in the purely immanent and hence the intuitively given: "perceptions" or the "lived acts" (Erlebnisse) of consciousness. According to Hume "impressions" are given in themselves in simple, straightforward intuition. They possess such completely adequate givenness and hence apodictic evidence that they are incorrigibly true and certain. Hence, strictly speaking, they do not fall within the realm of knowledge and truth. When investigating evidence as the criterion of knowledge and truth Hume has in mind the relations which arise from the association of "ideas." These relations are evident to the degree they are brought to intuitive givenness. In this sense it may be said that these relations are constituted in evidential givenness through association. Intuition is constitutive.¹