Without those rules, people would not be able to live among other human beings. People couldn't make plans, they couldn't leave their belongings wherever they went. We wouldn't know who to trust or what to expect from others. Civilized social life would not be possible.
First, it's possible to make judgments about others based on your personal values and not theirs. For example, if you believe that all women should dress conservatively because you believe that dressing differently is immoral, then you're judging others based on your own set of rules. Most people tend to act morally and follow social guidelines.
Moralityoften requires people to sacrifice their own short-term interests for the benefit of society.
People or entities that are indifferent to good and evil are considered amoral, while those who commit bad acts are considered immoral. If you listen to how these words are used idiomatically, morality tends to relate to codified social beliefs that are unquestionably received (the use of the term moral majority in the 1960s, for example).
Moralsare also influenced by culture or society, but they are personal principles created and defended by individuals themselves. They say that you have done nothing morally wrong when crossing the road, since you have no general moral obligation to obey the law, neither this law nor any law.
Finally, sometimes people can use moral principles to justify bad behavior, such as stealing or hurting others in some way. For example, Olympic athletes have a code of ethics that they must adhere to; and people are often given advice to follow their moral compass. However, it can be difficult to follow them all the time, which makes following one's own personal moral values even more valuable. For example, someone who is honest may feel that they are a good person because they follow the moral principle of being sincere at all times.
Later, philosophers such as John Locke, Jean-Jacques Rousseau and Immanuel Kant studied moral principles. Moral principles can be different for each person because they depend on how a person was raised and what is important to them in life. For example, you might believe that women should trust their husbands because in your culture everyone has traditionally been in agreement with this idea for generations; however, if you were born in a different country where people don't think this way, you might not feel that it's morally right. Most people agree that what is legal is not necessarily moral and that what is immoral should not necessarily be illegal.
If you're just starting your moral journey, you might consider exploring morals in various philosophical texts.