Alternate Kanji==  
 "先聖" also translates to "Sensei", but literally means "anicent sage" or "Confucius".  

It translates to “sensei”? It’s pronounced that way, but it translates (into English, at any rate) as “ancient sage” and usually refers to Confucius. But it has absolutely nothing to do with the word covered by this article, and the kanji are not alternates for 先生. The coincidence of pronunciation is just that: a coincidence. Nothing more, nothing less.   

I'm only asking if the kanji I listed is a archic version of the current kanji used. Plus, Confucius was a teacher so it can't be said mere coincidence.  

Suite yourself. But 先聖 is not an archaic version of 先生, and the coincidence of pronunciation is just that. This is not at all a rare phenomenon in Japanese; in fact, it is the Chinese that you should be tracking down. Whether 先聖 and 先生 are pronounced the same in Chinese, I do not know. In any case, if you introduce into the article your assumption about the two character strings being related or variant “spellings” of the same word, you will have to substantiate the assertion with a reliable source as per WP:ATT. All other discussion is irrelevant to Wikipedia and does not belong here.  

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