Parents, of course, have concerns and 'say,' but they don't have the right to shield their children from knowledge. That is not a right, any more than they have the right to shield their children from healthcare or medicine.

For all of his bravado, obnoxiousness, hatred, and vitriol, the scariest thing about Trump, to me, is his unique combination of ignorance about the world, convolved with ignorance about himself.

Either Trump only talks to those who play up to his delusion, or he simply doesn't listen to those who might burst his bubble. Either way, that is a cause for worry.

Lawrence M. Krauss Quotes