To cast down your bucket where you are means that you don't need to travel far in order to find what you are looking for - there are many valuable resources exactly where you are.
What Washington is trying to say here is that he wants both black and white people to work together and rebuild the South in order to make it prosperous and forget about their differences.
In "Mending Wall", by Robert Frost, the person who questions the necessity of the fence is the narrator. The narrator is not sure whether to mend the fence or not, but his neighbor repeats his father's words and traditions 'Good fences make good neighbors'. He thinks that mending the wall is being practical and doesn't want to hear the narrator's opinion against its utility.
Answer:
As you may have observed, all continuous tenses use a form of the verb 'be' and a present participle, whereas all perfect tenses use a form of the verb 'have' and a past participle.
Explanation: