Interesting that Conficius taught the importance of devotion to family while Jesus taught that family should be abandoned in order to follow him.
Jesus taught that family was not above righteousness and love, if your family was doing wrong, you don't follow it.
Gautama Buddha also lived a bout 400 years before Jesus. His teachings are every bit as impressive and remarkably similar to Jesus'. The similarities are so interesting some scholars have proposed teh idea that Jesus or his followers were guilty of plagerism.
So what is unique about Jesus teachings that makes you think Confucius and Buddha were just wise men but Jesus' teachings are evidence of divine origin?
The christian respons, along the lines of Paul and Auggustine, is that the WORD of God ( that became Christ) has made God know BEFORE Christ came, hence the "gentile that knew the law, has the law".
The "universal truths" that Jesus spoke were correct not because they were universal, but because He made them universal as the Word of God that enter into our word LONG BEFORE the "incarnation" of God did.
The truths spoke before Christ came were given to those that spoke them from The Word of God.
So, what makes Jesus's teachings unique above others that taught the same BEFORE Christ did?
Nothing makes the TEACHINGS unique, Jesus was unique NOT because of his teachings, but because he WAS Divine.
That may have added extra "credibility" to the teachings but that didn't make them anymore correct then they were before.