It has yet to be proven that intelligence has any survival value.
— Arthur C. Clarke

Every New Year is the direct descendant, isn't it, of a long line of proven criminals?
Ogden Nash proven quote

Everyone is innocent unless proven otherwise.
— Luiz Inacio Lula da Silva

If my theory of relativity is proven successful, Germany will claim me as a German and France will declare that I am a citizen of the world. Should my theory prove untrue, France will say that I am a German and Germany will declare that I am a Jew.
— Albert Einstein

And remember, where you have a concentration of power in a few hands, all too frequently men with the mentality of gangsters get control. History has proven that.
— proven quotation by Lord Acton