The following matters in the table below based on the ability of man to know them using his senses
Knowledge
Can know
Trow
Cannot know
Man's body
Man's soul
The Day of Judgment
The beauty of nature
Time of man's death

How does this excerpt develop the central idea that espionage during the civil war was often carried out by untrained citizens? it enhances the reader’s understanding by explaining why training was unnecessary. it changes the reader’s perception of what information a spy was able to obtain. it explains an ordinary person’s motivation for conducting espionage against the enemy. it adds moral complexity to espionage, due to the use of secret and dangerous methods.