The main idea of paragraph 2 in Walden is that a. we do not need to worry about too many details.

b. our lives are too complicated, and we should find ways to simplify them.

c. we must be good at calculating in order to succeed.

d. all of the above

The details about the statues, i believe, are that they're carved from blocks of igneous stone, many of them are partially buried under the ground which to preserve and protect them from the harsh environment on easter island, and many of the facial features have washed away. also, the most well-preserved one is at the british museum in london.these are just guesses from what i can see and what i think i read correctly. i'm sorry i couldn't be more .