Martin Luther King Jr. Often spoke of a day in the future when he hoped that his children would be judged not by their skin color

This is true! And the structure of the sentence is grammatically correct.

Explanation:

my dad purchased natural colorings in a specialty store

- "the die is cast; i have consented to return if we are not destroyed. thus are my hopes blasted by cowardice and indecision; i come back ignorant and disappointed. it requires more philosophy than i possess to bear this injustice with patience. i have lost my hopes of utility and glory; i have lost my friend."