"Psychological - or more strictly speaking psychoanalytic - investigation shows that the deepest essence of human nature, which is similar in all men and which aims at the satisfaction of certain needs... [are] self-preservation, aggression, the need for love and the impulse to achieve pleasure and avoid pain..." In his In its simplest form, this quote perfectly explains Sigmund Freud's theory of human nature. Human beings, according to Freud, are in a constant state of inner conflict; trying to satisfy their animal instincts, while maintaining a socially appropriate life. Freud called these animal tendencies that we have, Id. The Id is essentially our unconscious mind, it is the part of us that has been there since the day we were born and determines the needs and desires in our life. The id simply aims to immediately satisfy our sexual or aggressive impulses, without taking into account other implications. On the other hand, Freud used the term “Superego” to describe man's conscience and moral sense. It is the job of the Superego to keep the id in check by combating the desire to satisfy the urges through feelings of guilt or anxiety. Finally, the Ego is the conscious representation of the constant battle between the Superego and the Id. He must strive to satisfy man's instinctive tendencies while taking into account his conscience and doing what is rational and acceptable. Freud argues that these internal processes that are constantly at work in our minds are what shape humans to do the things that they do. Thus, he believes, the purpose of human nature is to satisfy our basic aggressive and sexual desires while adhering to cultural and social norms. “All men, by nature, desire to know.” (p. ...... middle of article ......ard for free will; the objections to Aristotle's argument are far fewer. I agree with Aristotle in thought that the telos of man is to acquire knowledge and that our inherent nature Human nature must be “happy However, I believe that human nature is motivated by the desire to find the answer to one question: what is”. the meaning of life? learning or not, we are taught more and more about the world and our purpose in it Striving to put it all together and create a sense of understanding of the question “why”. causes us to behave and act the way we do. finding an answer is an unattainable goal in a human being's life, living one's life in a way that constantly questions and searches for the meaning of one's self. existence is enough to achieve total happiness..