At least they're talking about the theory. I mean, that's what's IMPORTANT. (The Big Bang Theory Season 8, Episode 18)
That's an IMPRESSIVE layout, isn't it? (The Big Bang Theory Season 6, Episode 21)
It's NOTEWORTHY that at other points in history... (The Big Bang Theory Season 1, Episode 15)
...with his dating a woman whose most SIGNIFICANT achievement... (The Big Bang Theory Season 3, Episode 11)