Synthesized answer
The provided passages do not contain information about the specific evidence the author provides in "The Essential Tension" [1].
The snippet only includes a quote from Sir Peter Medawar, describing Kuhn's character and his desire to find the truth [1]. It does not detail any evidence presented within the book itself. Therefore, what evidence the author provides cannot be determined from these passages.
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: The Essential Tension by Thomas S. Kuhn Description: "Kuhn has the unmistakable address of a man, who, so far from wanting to score points, is anxious above all else to get at the truth of matters."—Sir Peter Medawar, Nature Categories: Science Pages: 392 Snippet: "Kuhn has the unmistakable address of a man, who, so far from wanting to score points, is anxious above all else to get at the truth of matters."—Sir Peter Medawar, Nature