Final answer:
The purpose of Thomas Jefferson's statement in the Declaration of Independence was to provide a justification for the American colonies declaring independence from Great Britain.
Step-by-step explanation:
The statement 'We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness' from the Declaration of Independence serves as a justification for declaring independence from Great Britain.
Thomas Jefferson laid out the Enlightenment principles that supported the right of the colonists to establish a government that ensured their unalienable Rights. The declaration signifies a break from Britain's governance due to its failure to protect those rights, underscoring the belief that governments should derive 'their just powers from the consent of the governed.'