4. Scientist:

It is the human nature, to invent something that is very useful even by small things. So, no doubt, for people who love inventing, there can be no other better profession than being a professional scientist in this word. So, the basic job description of a scientist is, he or she must have a careful watch in their surrounding and if they find something interesting, they need to figure out, how it will work if it is brought into a perfect shape. If they are inventing something new and are in a process to reach it out to the common man, then they have to have a thorough examination on how the new thing that they have invented actually works. They need to be very much careful when they want it to reach out to the society because, if something goes wrong after they give it to the society, they will be blamed first. So, a profession as a scientist is a very careful as well as a heard job. But no doubt this career is ever lasting until the mankind exists.