✔ 最佳答案
1. Desire to be the dominant religion in the world. (Human nature)
2. Hatred of each other. (Conflicts with #1 above)
3. Willingness to slaughter thousands to prove how peaceful their religion really is. (Necessary to achieve #1 above)
4. Insane devotion to fairy tales and mythology. (Psychological weakness keeps them in a herd)