“Suppose aliens invade the earth and threaten to obliterate it in a year's time unless human beings can find the Ramsey number for red five and blue five. We could marshal the world's best minds and fastest computers, and within a year we could probably calculate the value. If the aliens demanded the Ramsey number for red six and blue six, however, we would have no choice but to launch a preemptive attack.” IfsWorldYearsMindHumansEarthValuesChoicesHuman BeingsNumbersFiveSixComputerRedBlueAliens Author:Paul Erdos
“Brown people and black people and red people swarmed through our great halls, until those who were white looked simply faded-out human beings beside them. Indeed, I came to see that white is not a color in skin any more than in textiles, and if it had not quality, it had no value even for humanity. I saw that color in skin had a certain advantage in strength and warmth as a means of beauty.” PeopleIfsHumansMeanCertainValuesHumanityBlackHuman BeingsWhiteQualitySawsColorRedAdvantageSkinsBrownHallsWarmthBlack PeopleFadedTextiles Book:Yesterdays in a Busy Life Source: Yesterdays in a Busy Life