休谟问题就是归纳推理的合理性及其辩护的问题, 其核心是普遍必然的科学知识是否可能、何以可能的问题。冯契总结、吸取了先哲们探讨这一问题的积极成果, 做出了富有新意的解答。在他看来, 人们的认识能力能够获得普遍必然的科学知识; 思维形式为人们获得这种知识提供了逻辑上的担保, 这体现在两个方面: 一是时空形式和逻辑范畴为人们获得普遍有效的规律性知识提供了逻辑上的担保, 二是形式逻辑的基本原则和辩证逻辑的接受总则为人们获得普遍有效的规律性知识提供了逻辑上的担保。

Hume's question is about rationality and justification of inductive reasoning. Its core is: Whether and how is universal, necessary and scientific knowledge possible? Feng Qi gives a new and original answer to it by his summing up and absorbing predecessors' positive achievements. In his opinion, people's cognitive ability can obtain scientific knowledge of universality and necessity, and thinking forms provide logical guarantees for acquiring such knowledge. Such guarantees include two aspects. First, the space-time form and logical categories provide a logical guarantee for people's obtaining universally valid knowledge. Second, those basic principles of formal logic and the general acceptance principle of dialectical logic provide as well a logical guarantee for grasping universally valid knowledge.