Why does the Time Traveller keep mentioning a sphinx in The Time Machine?

The overwhelming majority of the peoples and nations of the world today want to live in peace

Consider the title and souce of the following articles. which one is most likely to exhibit a bias? (a) how to roast beef," by the food editor of a magazine (b) americans experiencing greater fatigue than previous generations, " by a harvard researcher (c) "americans' worsening eyesight not related to computer screen usage," by the public relations director of a major computer manufacturer (d) "sharing the burden: a history of cooperation," by a college professor

How does tiresias prophecy affect the plot of the story ?