What were the 3 most important points for issuing the declaration of independence?

The 3 most improtant points for issuing the Declaration of Independence written by Thomas Jefferson were: "life, liberty and the pursuit of happiness."

1) Liberty means that the authority to govern belonged to the people, not kings, and only exists to protect their human rights.  

2) All men are created equal, so they deserve the same opportunities in life.

3) The pursuit of happiness which is related to having the freedom of living and doing what you really desire.