"It is built into all aspects of our culture. Taught to use from birth. It does not make us masters of logic, though many may presume so. Nothing and no one is perfect. I have learned there is a place too for emotion over the years. Balance can be more useful than either end of an extreme."

There's a somber tone to Spock's voice that says he has learned these lessons the hard way as well. There are many regrets the Vulcan has. Choices he made on logic that were not right.