How is Victor driven by fear that changes his attitude towards science and humanity?

In Mary Shelley's Frankenstein, the protagonist, Victor Frankenstein, abandons his creature partly because of fear. He abandons it not just out of revulsion at the creature he has brought to life, but also out of fear at facing the consequences of his actions. Later, after the creature confronts him, Victor agrees to make a mate for the creature out of fear for his life. But then it is also fear of the two creatures procreating that leads him to destroy the mate. Victor's experiences teach him to be more cautious and respectful of science and nature, but it is also the grief of losing his family alongside guilt over his treatment of the creature that teaches him the value of human relationships. The creature inspires both fear and pity in its creator, making Victor a wiser person even as his world crumbles around him.