that quote is from All Our Yesterdays.
I can relate, Joshua. or, rather, I could relate to him a lot more when I was younger. I think I "took him within me" and became whole as I grew older. I believe that in TOS (not so much the movies) Spock's character is the quintessential adolescent. it's not that he has mastered logic, it's that he knows that the way to operating the two (or more, in our case) warring selves in his psyche is by integrating both via his logical faculties. Vulcans do have powerful emotions; hence the need for mental shielding and discipline. but ultimately Spock realized that emotions are a necessary part of his dual psyche.
the lesson for us (through the show) is that all of us can benefit from reason and the ability to control our basest instincts but that without emotions, we would not be able to aspire to the highest, most noblest parts of our human existence.
