Both of you have children of different races and ethnicities in your schools. They are your classmates, teammates and friends. Some were born down the block, others on another continent. But it does not matter: You are taught to accept these diverse backgrounds in forming your friendships. More importantly, your mom and I want you to make friends and, yes, judge others according to the content of their character rather than their skin color. A famous man named Martin Luther King Jr. gave this same advice to a divided nation a long time ago. Unfortunately, too many adults continue to ignore his advice.