Several years ago I had a student who wanted to do an independent study, and knowing he was very interested in political theory, I had him read some Hayek. He wasn’t that impressed.
Today he happened to be in town visiting friends and stopped by my office to talk. Turns out the ideas he read in Hayek had stuck with him and he’s continued reading in that realm and moved from a distinctly liberal to a somewhat libertarian position. As he said, the anarcho-capitalists call him a statist because he still believes in public education.
My experience, both as a student and as a teacher, is that ideas often have a long latency period before they successfully infect the exposed person. It’s always gratifying to see the progress of the disease after thinking the exposure had been unsuccesful.