Related:

• There comes to all races an ultimate crisis which you have yet to face .
  ... One day our minds became so powerful we dared think of ourselves as gods....
• We once were as you are. Spears and arrows. There came a time when our weapons grew faster than our wisdom, and we almost destroyed ourselves.
  We learned from this to make a rule during all our travels never to cause the same to happen to other worlds ....
• We think of ourselves as the most powerful beings in the universe.
  It's unsettling to discover that we're wrong. -- Kirk, "Errand of Mercy," stardate 3210.7....
• I don't think we have the right or the wisdom to interfere, however a planet is evolving.
  -- Kirk, "The Omega Glory," stardate unknown....
• Our true age can be determined by the ways in which we allow ourselves to play. -- Louis Walsh
• We prefer to help ourselves. We make mistakes, but we're human -- and maybe that's the word that best explains us.
  -- Kirk, "I, Mudd," stardate 4513.3....
• Kirk: "Signal our surrender." Uhura: "Captain?" Kirk
  We surrender!" -- "STVI:TUC", Stardate 9523.8...
• Kirk: "We haven't fired." Spock: "Captain...according to our databanks we have.
  ..twice." -- "STVI:TUC", Stardate 9523.8...
• We have found all life forms in the galaxy are capable of superior development.
  -- Kirk, "The Gamesters of Triskelion," stardate 3211.7....