In exploring the nature of human knowledge, we are often troubled by a central question: What is evidence? The definition of evidence and its role vary across disciplines. From philosophy to science, law, and everyday conversation, evidence is viewed as the basis for supporting a proposition. A deeper exploration reveals that the role of intuitive knowledge and how phenomenology explains this ability to "instantly access" truth have become important topics in philosophy.
In epistemology, evidence is understood as the elements that support beliefs. In this framework, evidence is typically viewed as private mental states, such that a person's perceptual experience of a tree can be used to prove the existence of the tree. However, within the phenomenological perspective, evidence is narrowly defined as intuitive knowledge, that is, an unquestionable sense of reality. “Does this instant intuitive knowledge actually reflect the truth?”
In phenomenology, evidence is seen as a fundamental principle of all philosophy, constituting the minimum basis of knowledge.
Phenomenologists such as Husserl believed that evidence is not just a material supporting a theory, but provides direct access to the truth. To them, evidence is intuitive and somehow warrants its own truth. This position means that everyone can acquire certain knowledge through intuition without having to rely on external evidence to verify its authenticity. This view has sparked a range of discussions, including whether there is questionability even in intuitive knowledge.
The existence of intuitive knowledge implies that humans have the ability to understand truth without external evidence.
In the philosophy of science, evidence is viewed as the element that confirms or refutes a scientific hypothesis. The evidence here must be public, allowing different scientists to share the same empirical data. In other words, the essence of science lies in the study of observable phenomena, which in turn provide the basis for confirming hypotheses. However, the scientific community also faces some challenges, such as how to determine which theory will prevail when evidence supports competing theories?
Scholars began to study the "evidentiary relationship" between evidence and supporting propositions. This exploration seeks to uncover what makes something support a belief or confirm a hypothesis. Important theories include probability theory and the hypothetico-deductive method, which attempt to clarify the factors that affect the validity of evidence.
If a proposition can become more credible based on certain evidence, then this evidence plays a supporting role.
Different academic fields interpret evidence differently. In law, evidence is information used to establish or disprove claims in a case. For example, witness testimony, documentary evidence, and physical evidence are all vital elements in the law. In law, the relationship between evidence and supporting claims can range from weak correlation to indisputable proof. Such diversity makes understanding the evidence challenging.
However, could the different definitions of evidence in different disciplines lead to misunderstandings or even mislead our judgment of the truth? This is a question worth thinking about.
In summary, intuitive knowledge and phenomenology provide rich perspectives in the process of interpreting evidence and promote our deeper understanding of human cognition. The nature of evidence is not clearly defined and unitary; the role it plays in different fields is full of variables and challenges. When we understand evidence, can we go beyond traditional boundaries, re-examine these understandings, and find a more comprehensive perspective?