"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." last two phrases talk about how all men created equal.
Um... the water cycle. Evaporation, condensation, and precipitation.
Todos os ambientes na Terra mudam com o tempo.
Rational and empirical, its true, and we know it because there are people who did it, we can proove that its correct :)
