According to Blake Li and Marie Zheng: "The Chinese character 義/义 (pronounced yì) means justice, righteousness, or meaning".
The symbol 義 has broad and complex intent for it includes values such as justice, honesty, loyalty, and reliability. It is pronounced as Yi. It is composed of 羊 (sheep) on top and 我 (I, myself) on the bottom. 羊 and 我 , if combined make 義 which can be literally interpreted to signify “I am a sheep.” (Li and Zheng, 2012)
In ancient China, a sheep or lamb was sacrificed to honor the Gods. The character’s intrinsic meaning is that, in regard to this ritual, one can make sacrifices in the name of justice or righteousness. (Li and Zheng, 2012)
Sacrifices; why does it need for one to sacrifice something in order to acquired righteousness? I thought man is indeed good by nature, then why does he/she needs to give off something; is this something referred to be a part of the person -'bad' in nature that it needs to be omitted to attain justice/righteousness? Why not just live oneself off, and not sacrifice anything, cannot he/she attain "Yi" with that?
"As the Master said, A gentleman in his dealings with the world has neither enmities nor affections, but wherever he sees righteousness, he ranges himself beside it" (Analects 4:10).
In other words, a righteous person, in his life, do not carry with him/her "loads" of prejudices. He/she is not biased nor he/she will do, for he/she knows that to take side will somehow address his/her inconsistency as a just person. As we look at the word itself: Pre-judice; pre which means "before", or "primordial" or "advance", and judice, which comes from the word judicium which means "judgment". Thus, prejudice literally means an "advance judgment".
Just like, let's say, you are a judge of a given trial. To be a judge, or as what we define as the "host of justice", you must never lean on any of the side of the oppositions of a given case even if you have known the people there, or at least it is a family of yours on the other side, or their motion is more related to your life, or any other else that will lead you to make judgments inefficiently. If you are to bend, yes, you could be considered a "judge", a human judge, but not a real promulgator of justice/righteousness.
Now, what does this "prejudice" have to do with sacrifice? We human beings are subjects of differences; in race, culture, way of thinking, society, understanding, etc. given that we have this unique ideas/beliefs/principles in us that we somehow carry with us all throughout our life. Such unique ideas/beliefs/principles though are, since unique, distinct from one to another'. Now, the point is, we are naturally biased. Although we deny it or not, but we do have this preferences in our selves that will somehow, disables us to make judgments as righteous as possible.
That there, enters 'sacrifice'. We need to sacrifice these personal prejudices and biases of us in order for us to follow the path of righteousness as what Confucius described. We are then to let go of such individual predispositions and preconceptions for us to be truly just to the whole world; especially to the people.
Hence, what you need to carry us your guide then to live a righteous life is not your private partiality, but rather, righteousness itself. In simple words, you must be biased to righteousness, and righteousness alone.