What does it mean when an administrator withdraws “into an ivory tower”?

According to thomas hobbes concept of the social contract what do people exhange for protection by the government ?

What did rudyard kipling mean when he wrote about the white man’s burden

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.