Answer:
Thomas Samuel Kuhn.
Explanation:
The given quote is stated by Thomas S. Kuhn. Kuhn was the philosopher of science. And most celebrated for his book "The Structure of Scientific Revolutions". In this book he talked about 'paradigm shift'.
The quote is taken from his book "The Road Since Structure Philosophical Essays, 1970-1993, with an Autobiographical Interview".
So, the correct answer is Thomas Samuel Kuhn.