Develop instincts actually need thinking... At least for develop good instincts without being hurt and without have to rediscover the wheel a generation after another.
In my homecountry, Italy, there was an ancient theathral novel named "Re Travicello" (King little beam, literally) that say having thinking subjects it's a big problem: they contest, protest, convince other, they develop working solutions against throne interest etc. So he invented two concept: "trust the system" and "use your instinct" to stop people thinking...
Zen, in China, chan, is a mixture of Buddhism and Taoism, with Taoism originating in the 4th century BC during the warring states period along with most other influential Chinese philosophies (and, weirdly, much of Greek philosophy).
One rival was Mohism, sort of a mix of logic and sophism (logic has origins in rhetoric); Zhuangzi has some points about "disputation" that make me feel more kindly to modern analytic philosophy.
In my homecountry, Italy, there was an ancient theathral novel named "Re Travicello" (King little beam, literally) that say having thinking subjects it's a big problem: they contest, protest, convince other, they develop working solutions against throne interest etc. So he invented two concept: "trust the system" and "use your instinct" to stop people thinking...