I would go with realism bc the definition of it is: the attitude or practice of accepting a situation as it is and being prepared to deal with it accordingly.
I hope this helps you :) also, if you could choose two answers I would go with intellectualism too
Hippocrates - Medicine
Euclid - Mathematics
John Locke (29 August 1632 – 28 October 1704) was an influential English philosopher and social contract theorist. He developed an alternative to the Hobbesian state of nature and asserted a government could be good only if it received the consent of the governed and protected the natural rights of life, liberty, and estate. If such a consent was not achieved, Locke argued in favour of a right of rebellion, which he referred to as an "appeal to heaven
