Scripter, is there an article or paper somewhere that has his quote, I think this would be a good one to have in my library.
I first read the quote here: The Innate-Immutable Argument Finds No Basis in Science but they don't list the source.
I eventually found the quote in a Discover Magazine article by David Nimmons (March, 1994) "Sex and the Brain", Discover, Vol. 15, No. 3, p. 64-71. Nimmons interviewed Levay with the quote found on page 66. While I don't have a copy of this particular Discover issue, I do have a copy of the article purchased online.
For the others I've pinged here, you may find this source invaluable. I'll try to remember to put this in the categorical index thread. Here's the paragraph surrounding the quote:
[His 1991 research] made the unassuming LeVay one of the most misunderstood men in America. "It's important to stress what I didn't find," he points out with the courtly patience of someone who long ago got used to waiting for the rest of the world to catch up. "I did not prove that homosexuality is genetic, or find a genetic cause for being gay. I didn't show that gay men are 'born that way,' the most common mistake people make in interpreting my work. Nor did I locate a gay center in the brain--INAH3 is less likely to be the sole gay nucleus of the brain than part of a chain of nuclei engaged in men and women's sexual behavior. My work is just a hint in that direction--a spur, I hope, to future work."And still 10 years later no support for a gay gene has been found. All the evidence points to environment as the major factor in determining homosexuality.