This is awesome. Captain American with a little Government 101 on Spidey.
Including this cool riff from Mark Twain:
In a republic, who is ‘the country’? Is it the government which is for the moment in the saddle? Why, the government is merely a temporary servant; it cannot be its prerogative to determine what is right and what is wrong, and decide who is a patriot and who isn’t. Its function is to obey orders, not originate them.
[…]
If you alone of all the nation shall decide on way, and that according to your convictions of the right, you have done your duty by yourself and by your country, hold up your head, you have nothing to be ashamed of.
(For easier viewing click the gear on the upper right of each image, then choose “View full resolution.” A new window will open. If needed, click the image to enlarge.)
According to this site the above exchange took place in Amazing Spider-Man, issue #537.
All images copyright Marvel.