To begin with, in both Letter from Birmingham and Four freedom dr. King and Roosevelt use similar tones. In Letter from Birmingham jail, Dr. King tone comes off as noble and slightly angry.
In the text he says, “I wish you had commended the Negro sit inners and demonstrators of Birmingham for their sublime courage, their willingness to suffer and their amazing discipline in the midst of great provocation. One day the South will recognize its real heroes. As you can see King expresses his feeling of the negro sit-inners and demonstrators not given the verdict of being the “real heroes” of the south which they were king also give off a slight glance of angry towards this as well. As well as fur Roosevelt he too give off a tone of noble and a slightness of anger. In the Four Freedom speech he says things like, ” it’s not probable that any enemy would be stupid enough to attack us by landing troops in the United States from across thousands of miles of ocean'” and The necessary strategic points would be occupied by secret agents and their dupes—and great numbers of them are already here, and in Latin America. In Roosevelt’s speech, you can tell he angry by how he uses words like “stupid” and “dupes”. Secondly, both of these pieces showed a theme of injustice.
In the four freedom speech Roosevelt talks about the basic right that everyone deserves a person.in the letter roosevelts says, “I use the word “unprecedented,” because at no previous time has American security been as seriously threatened from without as it is today. Since the permanent formation of our Government under the Constitution, in 1789, most of the periods of crisis in our history have related to our domestic affairs. And fortunately, only one of these–the four-year War Between the States–ever threatened our national unity.
Today, thank God, one hundred and thirty million Americans, in forty-eight States, have forgotten points of the compass in our national unity.”here you can see that the problem of injustice in our country. As for Dr.King he talks about the event that had occured with black people as unjust and unfair. In the letter king says, “Injustice anywhere is a threat to justice everywhere.
We are caught in an inescapable affects one directly, affects all indirectly. Never again can we afford to live with the narrow provincial outside agitator idea.”