Related:

• It is the nature of our species to be free. -- Kirk, "Metamorphosis," stardate 3219.8.
• The idea of male and female are universal constants. -- Kirk, "Metamorphosis," stardate 3219.8.
• Not one hundred percent efficient, of course ... but nothing ever is.
  -- Kirk, "Metamorphosis," stardate 3219.8....
• We estimate there are millions of planets with intelligent life.
  We haven't begun to map them. -- Kirk, "Metamorphosis", stardate 3219.8....
• What kind of love is that? Not to be loved; never to have shown love.
  -- Commissioner Nancy Hedford, "Metamorphosis," stardate 3219.8....
• Our species can only survive if we have obstacles to overcome.
  You remove those obstacles. Without them to strengthen us, we will weaken and die....
• Insofar as love expresses itself, it is not expressing itself in terms of socially approved manners of life.
  That's why it is all so secret. Love has nothing to do with social order....
• Sometimes a feeling is all we humans have to go on.
  -- Kirk, "A Taste of Armageddon," stardate 3193.9....
• Sometimes pain can drive a man harder than pleasure.
  -- Kirk, "the Alternative Factor," stardate 3088.7....