In Immanuel Kant's writing, Good Will and Duty, he argues that suicide is immoral. He has many reasons why it is immoral, and they stem back to his beliefs on life. He believes in the categorical imperative and it has a few unconditional commands. One of them is respect life. That alone should tell that suicide is immoral. Also, he believes that it is an unnatural act, and it can't be universalized.
             The reasons behind this position do fall consistent with his views of moral autonomy. Moral autonomy is basically following a set of laws. There are many kinds of laws; examples are man-made laws and natural laws. Man-made laws follow the natural law in some ways in that they are the basis for society. But, the way people are, if the laws are not written down, some will not follow them, and then there would be complete chaos on society. Here is an example of how suicide does not break the code of moral autonomy:
             There is a college student who is a freshman and is very depressed. Now this has been going on for a few years previous. But they have graduated and are in a new social environment and setting. They are away from home for the first time for a long period and they are making decisions that will impact the rest of their lives. Also, their parents are breaking after twenty-five years of marriage and to add to it, they have also lost both of their grandmothers during that year. Plus, college life is not easy with all of the work, and they are not doing as well as they had in high school. To add to the depression, there is a lot of stress going on as well. They figure all of this would stop if they killed themselves. When this would happen, they would be dead, all of their problems would disappear and they would be better of. Should they do it or not? Here is why they should not and why it does not break the code of moral autonomy:
             First of all, Kant says that we should preserve life. In the act ...