This study examines Emanuel Rádl’s concept of the "philosophy of history" as presented in his seminal work, "The History of Biological Theories." In the preface to the second edition (1913), Rádl reflects on his attempt to trace a specific historical development of scientific thought. He argues that the history of biology should not be seen as a mere succession of theories but as an internal evolution of interconnected ideas. A central tenet of his philosophy of history is the observation that scientific doctrines are often not abandoned because they are proven incorrect through logical refutation. Instead, they may become obsolete, fall into oblivion, or be suppressed by the activity of opponents for reasons that are not always strictly logical or factual. By highlighting these non-logical factors in the progression of science, Rádl offers a sophisticated historiographical perspective that anticipates modern discussions on intellectual shifts and the social dynamics of scientific knowledge.