Focusing on his teachings:
* Order: Confucius emphasized social order, harmony, and respect for hierarchy.
* Obedience: He stressed the importance of filial piety and respect for elders.
* Openness: Confucius encouraged open-mindedness and a willingness to learn.
* Optimism: He believed in the inherent goodness of people and the potential for self-improvement.
Focusing on his life:
* Origin: You could mention his birthplace (Qufu) or the time period he lived in.
* Obstacles: Confucius faced challenges in his life, such as political turmoil and rejection of his teachings.
* Ostracized: He was often sidelined by those in power, but he continued to teach.
More creative options:
* Onward: His philosophy encourages us to strive for excellence and continue learning.
* One: The idea of "one" can represent unity, harmony, and the interconnectedness of all things.
The best "O" for your poem will depend on the overall theme you're trying to convey. Choose the option that best fits your acrostic poem's message about Confucius.