Love is simply a cognitive illusion, a hell of a trick - deeply rooted in our brains, continuously fucking with the mind. Dr. Robert Sapolsky, professor of biology and neurology at Stanford University, delivers a brilliant crash course on how dopamine manipulates human behavior. Its kind of a drug addiction to the biochemicals our brain is manufacturing and may vary over time and on different people. Evidence: once the dopamine starts flowing, monkeys and people will work and work and work their fucking asses off in expectation of receiving a treat at the end of the toil. For monkeys, the anticipated reward can be a grape. For people, a pair of sneakers, expensive car, early retirement, a couple of minutes of entertaining diversion, a few seconds of sexual gratification, or the promise of eternal salvation.
There are no discernible differences between how monkey's and human's neurochemistry functions. The only distinction is that monkeys don't get hooked on beliefs, ideologies, dogma, degrees, titles, fantasies, lies, empty promises or self-deceptions. Simple. And if you don't agree, you can go and FUCK yourself!