Question

Why does Henry david Thoreau think imprisonment is ineffective?

Answer 1

He believed being imprisoned (even if only for a single night) only kept his body imprisoned. His mind was still free and imprisonment only further fueled his philosophical thinking.
I hope this helps!

Answer 2

Because the mind is not imprisoned.

Step-by-step explanation:

Henry David Thoreau believes that imprisonment is not effective because the mind cannot be imprisoned. Therefore, he believes that although his body is imprisoned, there is no way in which the authorities would be able to control his thoughts. Therefore, he can still have the same ideas that he had before, which got him imprisoned in the first place.