In sports, you simply aren't considered a real champion until you have defended your title successfully. Winning it once can be a fluke; winning it twice proves you are the best. ↗
Each reform, therefore, improving the economical and political situation of the workers proves to be an arm that increases the energy with which the proletarian struggle of classes is fought. ↗
If you have embraced a creed which appears to be free from the ordinary dirtiness of politics - a creed from which you yourself cannot expect to draw any material advantage - surely that proves that you are in the right? ↗
Every study on crime and or firearms proves time and time again, that 99.99999% of American gun owners do not commit crimes or use our firearms in any dangerous or improper way. ↗
While there is perhaps a province in which the photograph can tell us nothing more than what we see with our own eyes, there is another in which it proves to us how little our eyes permit us to see. ↗
The very existence of flame-throwers proves that some time, somewhere, someone said to themselves, You know, I want to set those people over there on fire, but I'm just not close enough to get the job done. ↗