In his blogpost Stoicism & Star Trek: Think like Spock – Act like Kirk Jen Farren at the University of Exeter writes:
„Gene Roddenberry (creator of Startrek) says that he deliberately: ‘Took the perfect person and divided him into three, the administrative courageous part in the Captain (Kirk), the logical part in the Science Officer (Spock) and the humanist part in the Doctor (McCoy).’“
Farren then quotes Stephen Fry: „You have the Captain in the middle, who is trying to balance both his humanity and his reason. And on his left shoulder, you have the appetitive, physical Dr. McCoy. And on his right shoulder you have Spock, who is all reason. And they are both flawed, because they don’t balance the two, and they’re at war with each other, McCoy is always having a go at Spock. And Kirk is in the middle, representing the perfect solution.“
Kirk tries to balance emotion and reason, but he never loses sight of taking action. His choices and actions make him take risks for the common welfare, even when the purely logical thing might be to do nothing. In the words of Captain Kirk himself: ‘Gentlemen, we’re debating in a vacuum. Let’s go get some answers.“