With his "I Have A Dream" speech, Martin Luther King was proposing that everyone treat each other as equals and look at people and treat them like people. To not look at a person for their color but their spirit. He wished for little black boys and girls and white little white boys and girls to unite and treat each other with kindness.
To be roguish is to be up to no good, which could mean being untrustworthy like a criminal or playful and mischievous. If someone gives you a roguish smile, ...
