What does Fredrick the Great mean when he says all must collaborate towards one aim? Does that statement makes sense even though he says " a system can be the product of only one brain?

i think its provide for the common defense

- "friedan's attitude towards what she calls the 'feminine mystique' is that she sees the ideal of femininity as stiffing women's potential in the 1950's. betty friedan was a writer and activist of the 1950's and 60's."

< 3

while it was true that the cotton gin reduced the labor of removing seeds, it did not reduce the need for slaves to grow and pick the cotton.

explanation:

before eli whitney's invention of the cotton gin, picking and cleaning cotton was a slow, labor-intensive job. workers, usually slaves, had to pick the seeds from the cotton fibers by hand. this invention made it possible to grow large amounts of cotton on big farms and make money.