Here in the United States, we’re used to having the “pursuit of happiness” as part of our nation’s founding.
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.
-US Declaration of Independence

Now, Brazil is considering adding the pursuit of happiness to its constitution:
Brazil looks at adding ‘happiness’ to constitution