The first paragraph and the last two paragraphs of Chapter 1 are as follows:

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Once they have reached a certain maturational stage, every member of the human species is able to produce and comprehend the language to which s/he is exposed, barring any serious impairment. Underlying this ability of ours to relate linguistic sounds/signs (henceforth just "sounds" to make the exposition simpler) and meaning is the language faculty: this is one of the most fundamental working hypotheses adopted in the research program initiated by Noam Chomsky over half a century ago. The aim of Chomsky's research program is to discover the properties of the language faculty, in its initial state and in its steady state. It is hypothesized that in its initial state, the language faculty, as the genetic endowment that underlies our ability to relate sounds and meaning, is uniform across the members of the species and that, in its steady state where its non-trivial "growth" has stopped, it varies in accordance with one's linguistic experience, within the limit imposed by the genetic endowment. The research program is also concerned with how the universal properties in question might be related to laws that govern the nature, beyond the language faculty per se, and how the language-particular properties are acquired. This book's main concern is how hypotheses about the language faculty can be put to rigorous empirical test. I will propose how we can deduce definite/categorical and testable predictions, and illustrate how we test our predictions and how we can obtain experimental results that are very close to our definite/categorical predictions. In short, the goal of the book is to show that it is possible to pursue a study of the language faculty as an exact science in the sense just noted. I will refer to a study of the language faculty as an exact science in this sense simply as language faculty science.


　　There is an accompanying website, where the experimental designs and experimental results discussed in subsequent chapters are made available in more detail than in the book. The website is intended to make it possible for others to examine the validity of the book's empirical claims more thoroughly than is made possible in what follows, and hence, indirectly, the viability of its methodological proposal. The website provides, among other materials, "raw data" of the experimental results in the form of Excel files so that interested people can analyze them by the statistical techniques of their choice. The book and its accompanying website are meant to show, for the first time in my view, how it is possible to investigate the language faculty as an exact science in the sense noted above. Language faculty science thus turns out to be much closer to physics than to social and behavioral sciences, and this should have far-reaching implications for research that deals with other aspects of the mind. No other work in the literature claims that we can deduce definite and testable predictions about the judgments of an individual informant on the acceptability of sentences and expect them to be supported by experimental results. Nor is there any work in the literature, as far as I am aware, that proposes how to design experiments and interpret the experimental results so as to obtain robust experimental results in accordance with our definite and categorical predictions about the judgments of the individual informant as a reflection of universal properties of the language faculty.
　　It is generally agreed that it is not possible outside physics and its closely related fields to deduce definite predictions and expect them to be borne out experimentally. I am going to argue that it is indeed possible. The book's slogan is: language faculty science as an exact science is possible; yes, it is. Some may say that I am a dreamer. But I am not the only one. I hope upon reading the rest of the book some of the readers will join us.
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