Considering the potential impact on others prior to making a decision is consistent with "ethical" behavior.
Ethical behavior refers to acting in courses predictable with what society and people normally believe are great qualities. Ethical behavior has a tendency to be useful for business and includes showing regard for key good rules that incorporate trustworthiness, reasonableness, correspondence, nobility, decent variety and individual rights.
Ground, allowing the seed to travel away from the parent plant. Seed adaptation for distribution: seeds can float on a breeze, allowing seeds to travel away from the parent plant.
In this particular quote, Thomas Jefferson is referring to the issue of slavery as a "fire bell in the night." When saying this, Jefferson is trying to express how this will be a constant issue in the US. When Jefferson wrote this letter (1819) Missouri was applying for statehood. They were applying to be a slave state. If they entered as a slave state, it would throw off the balance of free and slave state representation in the US Congress. Essentially, Jefferson was accurately predicting how deciding whether or not slavery will exist in the new territories gained by America during the early 1800's will result in problems.
The city-states of Sumer, the world's earliest civilization, developed in Mesopotamia, which is today's Iraq.