The Preamble to the Constitution is an introductory, succinct statement of the principles at work in the full text. It is referred to in countless speeches, judicial opinions, and in a song from Schoolhouse Rock. Courts will not interpret the Preamble to confer any rights or powers not granted specifically in the Constitution. Similar language is in the preamble to the Declaration of Independence.

We the people of the United States, in order to form a more perfect union, establish justice, insure domestic tranquility, provide for the common defense, promote the general welfare, and secure the blessings of liberty to ourselves and our posterity, do ordain and establish this Constitution for the United States of America.

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.

Every industrialized nation in the world, with the exception of ours, has healthcare for all their citizens.
This is why we should adopt a "Medicare For All" plan, so every citizen in America has non-profit healthcare.

People shouldn't be sick and dying, going bankrupt from obscene bills, while these for-profit healthcare corporations reap billions for their CEO's and investors. Healthcare, as a basic human right, is essential to promoting the general welfare, and is certainly an unalienable right.