read the excerpt from Jackie Robinson's letter to President einshowwr. which best explains why Robinson includes this description of African-Americans

What kinds of images does the word "twinkling" suggest? dirt, earth, poverty, race leaves, trees, green, spring stars, dreams, looking upward, heaven darkness, sadness, loneliness, isolation they eat beans mostly, this old yellow pair. dinner is a casual affair. plain chipware on a plain and creaking wood, tin flatware. two who are mostly good. two who have lived their day, but keep on putting on their clothes and putting things away. and remembering, with twinklings and twinges, as they lean over the beans in their rented back room that is full of beads and receipts and dolls and cloths. tobacco crumbs, vases and fringes.

The legend of king arthur and the basis of its factuality have drawn a good deal of attention for hundreds of years, from both popular culture as well as academic scholars. consider, now, the consequences of a definitive resolution to the issue of his existence. do you feel that not knowing in this case is perhaps preferred to knowing? what other mysteries might we as a culture prefer to remain unsolved? why?

What is the central idea in this advice from branch rickey to jackie robinson?