"You can take the blue pill and go back to your classroom and lecture your 20 students."

"But I’ve taken the red pill, and I’ve seen Wonderland."

Strange mixed metaphor! (The red pill is supposed to get you to reality, but Wonderland is a dream.) But mixing metaphors doesn't make your idea wrong, and Sebastian Thrun is a professor of computer science, not a professor of rhetoric. He's leaving his tenured position at Stanford to found Udacity: