Macbeth's "tomorrow and tomorrow and tomorrow" speech in Act 5, scene 5 acts as Macbeth's farewell. In it he thinks about the meaning of life and decides that death is something that comes to everyone, people are all just walking the earth with no importance. "Signifying nothing" at the end refers to man's life, it means nothing, according to Macbeth. He relates a person's life to an actor who plays a part on a stage for a couple hours and then disappears, doesn't exist anymore.
This speech shows that he has essentially given up (in his mind) and thinks that life is meaningless.
As one of the most proficient civil rights activist of the 1960's, Malcolm X and his speeches were very influential but particularly one speech was highly esteemed, that being the Ballot or the Bullet speech. A speech that was given after the "I have A Dream speech by Dr. Martin Luther King. Despite, Dr. Martin Luther King being a pacifist and also a civil rights activist as well; Malcolm X was more tyrannical and advocated the use of violence. During this era, the democrats were in control of the House of Representatives and the Senate, therefore both the Senate and the House of Representatives were leaning towards providing more civil rights to African-Americans.