Spock blocked, but his considerable Vulcan discipline allowed him to do it gently.

Despite her Vulcan discipline, she actually felt slightly sorry for him, and allowed that to slip into her tone.

Has studying Vulcan disciplines taught you how to do that?

It might be interesting to try it against the Vulcan disciplines.

"There are certain techniques of Vulcan mental discipline which would effectively disable my mind."

Somewhere, buried and hidden beneath years of Vulcan discipline, there was pain.

Understand that for years, my mother has studied Vulcan mental disciplines, including the control of her human emotions.

He's got a lot of catching up to do, and Vulcan discipline may be just what he needs.

As his eyes adjusted to the dark, it took all of his Vulcan discipline not to react to what he saw.

He's just hiding it with some kind of Vulcan discipline.