In Act 1 of "Macbeth" by William Shakespeare, there are constant struggling forces of good and evil in Macbeth's mind. These struggles, which are both mental and physical, have a deep impact on Macbeth whether he should be loyal and be proud for his King Duncan or purpose the idea of killing Duncan to become the next king. Throughout act one, there are many internal and external forces build up on Macbeth that made him hesitate to kill King Duncan.

For the internal forces on Macbeth, there are conflicts between his personality and his ambition. Due to his human kindness and loyalty to King Duncan, Macbeth knows that it would be hard for him to kill the king. Furthermore, from the stance where he said " Besides, this Duncan hath borne his faculties so meek, hath been so clear in his great office, that his virtues will plead like angels...