He has extensive material providing advice on relationships and communication. On a lesson titled “The 90/10 Factor” in his Defining the Relationship series, Silk argues for 90% and 10% ratio applicable to each sex. Male “needs” can be classified as 90% sexual and 10% emotional, while female “needs” are 10% sexual and 90% emotional. “Men have testosterone pumping through their veins and were designed that way on purpose. It’s not evil!” says Silk in the workbook, and then says something about “feminine”…