Martin Luther King Jr. was a famous civil rights leader and speaker in the United States. His main achievements included leading the non-violent resistance to the American racial isolation system, promoting the civil rights movement, establishing civil rights laws, and providing equal education. On June 28, 1936, Martin Luther King, Jr. delivered his famous "I Have a Dream" speech in Washington, D.C., which was an important declaration of his leadership in non-violent resistance to the American racial isolation system. The slogan " I have a dream " in his speech became a symbol of the American civil rights movement and one of the most famous slogans in the world. Martin Luther King Jr.'s famous sayings included,"I can't change the weather, but I can change my clothes." "We can't make everyone our countrymen, but we can make them part of us." " We can't control other people's thoughts, but we can control our words." "We can't stop others from living their lives, but we can make ourselves live better lives." Wait. Martin Luther King Jr.'s leadership in the civil rights movement and his contributions to the civil rights movement were widely recognized. He was widely regarded as one of the greatest leaders in American history. His life and achievements had also become an important subject for many students to learn and understand.