Data Stellare 5818.4: Mentre Kirk e Spock attendono nella città sospesa di Stratos, una consegna di zeenite, unico minerale in grado di salvare la vegetazione di Merak II da un'epidemia, coloro che la estraggono, i Trogloditi, considerati servi dagli abitanti di Stratos, si ribellano per rivendicare la loro parità sociale.

Droxine: I have never before met a Vulcan, sir.
Spock: Nor I a work of art, madam. [T:07:30]

Spock: This troubled planet [Ardana] is a place of most violent contrasts. Those who receive the rewards are totally separated from those who shoulder the burdens. It is not a wise leadership. [T:11:21]

Spock: Extreme feminine beauty is always disturbing. [T:16:17]

Kirk: Unaccostumed to light and warmth? That's necessary to all humanoids. [T:18:00]

Spock: To restrict a segment of the population to such hardship is unthinkable in an evolved culture. [T:18:48]

Spock: Violence in reality is quite different from theory. [T:20:23]

Spock: All the little things you and I understand and expect from life, such as: equality; kindness; justice... [T:20:33]

Vanna: It's hard to believe that something which is neither seen nor felt can do so much harm.
Kirk: That's true. But an idea can't be seen or felt. And that's what kept the Troglytes in the mines all these centuries. A mistaken idea. [T:28:07]

Vanna: Hours can be centuries, just as words can be lies. [T:29:09]

Droxine: Father, are we so sure of our methods that we never question what we do? [T:39:11]

Spock: The Captain will employ his usual diplomatic balm. [T:39:54]