Philosophy fostered physical science by inventing rational thinking, logic and intellectual thoughts. Philosophy is quoted as the “sciences of science” because it is in a sense the source from which all science derives their theories from. Psychology answers the questions asked by philosophers but adopts the methods of physical sciences. Philosophy and physical science share an interest regarding the argument between the body and the mind.Dualists believed our bodies are physical versus the mind, in which they thought was perplexing and non-physical. The proponents of monism opposed this viewpoint. They believed the mind and body were not separate. Another common interest philosophy and physical science share are whether the minds knowledge is unborn (nature) or gained from experiences (nurture).James B. Watson was the founder of the behaviorism. He disagreed the speculations that behavior was hereditary. James Watson believed peoples reactions to certain situations were bent on how their overall experience had programmed them to react. I agree with Watson’s statement because the overall experience is how people react to situations depending on positive or negative reinforcement. An example of this would be companies offering raises to employees who do a magnificent job. A raise is a positive reinforcement for employees to be motivated to do their job well.The phenomenon of drug addiction can be linked to five different perspectives of psychology. The behavioral perspective can have an influence on drug abusers because they set themselves on the fact that drugs make them feel euphoric or fill a void. The drug can then function as a reinforcer for the abuser, causing them to know the euphoric feeling they are going to receive from the drugs, thus making it a behavior for them to constantly use. Cognitive psychology is derived from expectations. Drug addicts can often have negative feelings and tend not to cope with them well. So in turn, they look for a “pick me up”, something to make them feel good, hence the drugs. The psychodynamic approach to drug abuse may come from a person’s past. For example, if a person has been abused or raped, they may be more likely to become addicted to drugs because they have feelings of emptiness and have a void that needs to be filled, what they experienced will always be there; so continuous drug use is more than likely to happen. Lastly, the humanistic approach to addiction would build the addicts self-esteem up by not being judgemental and help them see they are not “bad” and to help them prove to themselves they can overcome their behavior. In the biological perspective, because everyone’s genetics is unique, some people have a deficiency in their capacity to resist certain impulses. If a person who has this deficiency tries a drug and enjoys it knowing it is bad for them, they will more likely get addicted because of their genetic vulnerability.