Source: Eugenics and Other Evils (1922), Ch. VII: "The Established Church of Doubt" (pp. 76-77). https://books.google.com/books?id=m2xaAAAAMAAJ&pg=PA76&dq=%22the+thing+that+really+is+trying+to+tyrannise+through+government+is+science%22&hl=en&sa=X&ved=0ahUKEwj9uKmM_6jMAhUHgj4KHZr3DW0Q6AEILzAD#v=onepage&q=%22the%20thing%20that%20really%20is%20trying%20to%20tyrannise%20through%20government%20is%20science%22&f=false Dale Ahlquist, president and co-founder of the American Chesterton Society, commenting of this passage writes: "Eugenics is also about the tyranny of science. Forget the tired old argument about religion persecuting science. Chesterton points out the obvious fact that in the modern world, it is the quite the other way around." http://www.chesterton.org/lecture-36/ Lecture 36: Eugenics and Other Evils
Quotes from book
Eugenics and other Evils
Eugenics and Other Evils: An Argument Against the Scientifically Organized State is a book by G. K. Chesterton arguing against the use of eugenics.