and Spock volunteers to mind meld with Kollos, allowing the two to pilot the Enterprise as one entity. Miranda Jones objects that she is a more logical choice, but McCoy reveals that she is blind and therefore couldn't possibly pilot a starship. (Her jeweled wrap, it turns out, is actually an elaborate sensor web.) A partition is set up on the bridge to hide Kollos, and Spock, wearing the visor, completes the mind link. Kollos and Spock, acting through Spock's body, successfully return the Enterprise to known space, and then retire behind the partition to dissolve the link, but forgetting the visor. Kirk shouts a warning, but Spock, unable to look away in time, goes mad and attacks the crew. He is subdued by a phaser blast from Kirk and rushed to Sickbay, where his condition deteriorates. Jones attempts to make mental contact with Spock but is apparently unable to help, and Kirk suggests that she, in her jealousy, does not really wish to. Enraged by the accusation, she makes one more attempt, and succeeds in bringing Spock's mind back to reality. The Enterprise arrives at its destination, and Kollos and Jones prepare to depart. Jones thanks Kirk for his insight, crediting it with ensuring her future. Kollos and Jones are now "one", and she now knows the joy of the mind link for herself. Kirk gives Jones a rose as they leave, reminding her that every rose has thorns. Production and reception This was the final episode filmed in the series' production that featured Eddie Paskey as Lt. Leslie. As the episodes were however shown out of production order, the final episode to feature the character was "Elaan of Troyius". The title is taken from a line in the poem "Jordan" by George Herbert. The Vulcan philosophy "Infinite Diversity in Infinite Combinations" first appeared in the episode. Show creator Gene Roddenberry inserted a speech by Kirk praising the philosophy and associated medal. The "pointless" speech was, according to William Shatner, a "thinly-veiled commercial" for replicas of the medal, which Roddenberry's company Lincoln Enterprises soon sold to fans. Releases This was released on LaserDisc in 1987 in the United States, paired with "And the Children Shall Lead" on one double sided 12" disc. This episode was released in Japan on December 21, 1993 as part of the complete season 3 LaserDisc set, Star Trek: Original Series log.3. A trailer for