In this Court dissents have gradually become majority opinions. - Felix Frankfurter

National unity is the basis of national security. To deny the legislature the right to select appropriate means for its attainment presents a totally different order of problem from that of the propriety of subordinating the possible ugliness of littered streets to the free expression opinion through handbills.

Is that which was deemed to be of so fundamental a nature as to be written into the Constitution to endure for all times to be the sport of shifting winds of doctrine?

Lincoln's appeal to "the better angels of our nature" failed to avert a fratricidal war. But the compassionate wisdom of Lincoln's first and second inaugurals bequeathed to the Union, cemented with blood, a moral heritage which, when drawn upon in times of stress and strife, is sure to find specific ways and means to surmount difficulties that may appear to be insurmountable.