61. Another is that there is too much variation among people to believe that they are dominated by, or at the mercy of, aggressive impulses.

62. For example, people who believe that aggression is necessary and justified-as during wartime-are likely to act aggressively, whereas people who believe that a particular war or act of aggression is unjust, or who think that aggression is never justified, are less likely to behave aggressively.

63. People decide whether they will act aggressively or not on the basis of factors such as their experiences with aggression and their interpretation of other people's motives.

64. Apprentices were considered part of the family, and masters were responsible not only for teaching their apprentices a trade but also for providing them some education and for supervising their moral behavior.

65. Also, skilled artisans did not work by the clock, at a steady pace, but rather in bursts of intense labor alternating with more leisurely time.

66. Goods produced by factories were not as finished or elegant as those done by hand, and pride in craftsmanship gave way to the pressure to increase rates of productivity.

67. Factory life necessitated a more regimented schedule, where work began at the sound of a bell and workers kept machines going at a constant pace.

68. Industrialization not only produced a fundamental change in the way work was organized; it transformed the very nature of work.

69. The labor movement gathered some momentum in the decade before the Panic of 1837, but in the depression that followed, labor's strength collapsed.