The Gettysburg Speech is perhaps the most important speech in US history. This speech was delivered by Lincoln in less than two minutes, at the end of the American civil war. That's because the message he wanted to give was fast, clear and didn't need a lot of arguments, because it was evident that it was true.
Lincoln inspired by the principles of equality defended in the Declaration of Independence of the country, declared the end of the war based on the concept that the country was born to be a country of free people and owners of their own lives, the end of the war allowed freedom be offered to everyone, as the founding fathers wanted and fought for it. Thus, Lincoln established that the end of the war would bring a nation united in recovery and truly free.
The test was developed in 1921, but was very popular in the 60's. It was mainly used to examine a person's personality, and to help in diagnosing any underlying psychological conditions.
Obedience to authority. It's quite difficult for most people to ignore the wishes of those in authority positions. People also feel like they're less responsible for wrongdoings if they act under the direction of someone else. Both of these reasons explain why employees are likely to act out the unethical wishes of their supervisors--and feel far less guilt than if they had decided to do it themselves.
