I don't think freedom needs these bold expressions. In its most simplest terms, I think freedom is the absence of outside restrictions, and these restrictions can in some cases simply not exist. I can see how Marx and the founding fathers believed to shake off chains in any meaningful sense though, bold action is required. I think bold action is necessary to attain freedom, but not to practice it. If an action is considered bold, then it in some ways is unexpected and can go against existing norms. So if exercising freedom means to be bold, people would constantly be pushing the boundaries of freedom. This is certainly one view of freedom, but I think someone isn't necessarily not free if they never make any bold actions.