The oldest paradox : < The first hen and the first egg, which one existed first ? （先有鸡还是先有蛋？）>, Nobody knows the answer. However, it is very sure that if the hen existed first, it must not come from the egg because no egg existed yet ! Vice versa , if the egg existed first, it should not come from the hen because no hen existed yet ! You might say that both came from < The great nature >. Of course, <The great nature> should not be a vacuum. Actually < the great nature > is the best term from the bottom of our hearts which could be offered to the < The great creator >, < The great creator > symbolizes < INFINITY > in mathematics. It could be verified that : INFINITY X INFINITY = 0, 1, ……even infinity, In other words : infinity times infinity is UNDEFINED as well as INFINITY + or – INFINITY are also undefined ! It is true that in our human-world nothing is infinite. In other words, we never see an unlimited event in this world ! We are 3-D creatures, so we could never understand the 4-D, 5-D,….and the N-D creator ! < Seeing is believing > is a good proverb, but it is not always true ! For instance, everybody knows that two railways are parallel. In mathematics , 2 parallel lines could not meet each other even extended to infinity. But our naked eyes could see that two parallel railways meet each other at the farthest point ! Electrons are so small even could not be seen thru microscope but we have to believe their existence ! In conclusion : we have to believe some existences which we could not see so far and may not believe some phenomenon which could be seen apparently ! In the near future, scientist may be able to develop a baby from a human stem-cell. We still could not say that scientist could < create > a new life. At the most we could say that this is a < transformation > from a ” primary ” life to a ” secondary ” life, not to < create > a ” life-less ” object to a ” life-ness ” object !