"The destiny of any science is to run counter to the common sense that prevails. There would be little need for science if the layman were able to understand an object through simple thought that does not rely upon scientific examination. But what the layman thinks is often the reverse of the essence of reality, making it necessary to overturn such thought through the scientific consideration of a given matter. This means that science is destined to struggle against common sense, so that only a courageous person is capable of becoming a true scientist."