The Negro fought and bled and died in every war the white man waged, and he still won't give you justice. You nursed his baby and cleaned behind his wife, and he still won't give you freedom; you turned the other cheek while he lynched you and raped your women, but he still won't give you equality.
If the tools are bad, nature's voice is muffled. If the tools are good, nature will give us a clear answer to a clear question.