The wisest thing in the world is to 
cry out before you are hurt. It is no good to cry out after you are 
hurt; especially after you are mortally hurt. 
People talk about the 
impatience of the populace; but sound historians know that most 
tyrannies have been possible because men moved too late. 
It is often 
essential to resist a tyranny before it exists. It is no answer to say, 
with a distant optimism, that the scheme is only in the air. A blow from
 a hatchet can only be parried while it is in the air.
(G.K. Chesterton, 1922) 
