Well, a simple person is happy and is more of a comfortable personality that deals with being the ideal person. A simple person relies on 5 life senses(book, common, street, fashion, and business).The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function. There is nobody so irritating as somebody with less intelligence and more sense than we have. What a distressing contrast there is between the radiant intelligence of the child and the feeble mentality of the average adult.

Genius is expressed in a variety of forms, such as mathematical genius, literary genius, scientific genius and philosophical genius amongst others. Genius may show itself in early childhood as a prodigy or later in life; either way, geniuses eventually differentiate themselves from the others through great originality. Geniuses often have crisp, clear-eyed visions of given situations, in which interpretation is unnecessary, and they build or act on the basis of those facts, usually with tremendous energy. Accomplished geniuses in intellectual fields start out in many cases as child prodigies, gifted with superior memory or understanding. There is also cited link between creativity of genius and genetic mutations linked to psychosis.is an excellent intellect, excellent work or an excellent achievement. More than just originality, creativity, or intelligence, the adjective "genius" is associated with the achieving of unprecedented insight. This is called the spark of genius. The genius (the excellence, a noun) of a piece of work raises a perceiver's expectation. The use of the adjective "genius" is generalized in some instances. It is particular in other instances. It might be particular to such a discrete field as philosophy, sports, statesmanship, science or the arts.The noun "genius" is a level of aptitude, capability, or achievement that exceeds the accomplishment of any other person in the same field. We have deduced from the normal distribution of intelligence that the concept is applicable to excellence at the of top 1‰, i.e. three standard deviations or greater, in any peer group. In psychology, the inventor of the first IQ tests, Alfred Binet, described persons in the top 1‰ of those tested as genii (a noun). This usage of the noun "genius" is closely related to the general concept of intelligence.

­Without a doub­t, Einstein was a genius. So was Isaac Newton -- as any fan of "Star Trek: The Nex­t Generation" can tell you, he invented physics. He also played a big role in the development of calculus, which some people have trouble comprehending even after extensive classroom study. Another genius, Wolfgang Amadeus Mozart, started composing music when he was 5 years old. Mozart wrote hundreds of pieces before his death in 1760 at age 35.

According to conventional wisdom, geniuses are different from everyone else. They can think faster and better than other people. In addition, many people think that all that extra brainpower leads to eccentric or quirky behavior. And although geniuses are fairly easy to spot, defining exactly what makes one person a genius is a little trickier. Figuring out how that person became a genius is harder still.

There are two big things that make it difficult to study genius:

The genius label is subjective. Some people insist that anyone with an intelligence quotient (IQ) higher than a certain value is a genius. Others feel that IQ tests measure only a limited part of a person's total intelligence. Some believe high test scores have little to do with real genius.
Genius is a big-picture concept. Most scientific and medical inquiries, on the other hand, examine details. A concept as subjective as genius isn't easy to quantify, analyze or study.

­So, when exploring how geniuses work, it's a good idea to start by defining precisely what a genius is. For the purpose of this article, a genius isn't simply someone with an exceptionally high IQ. Instead, a genius is an extraordinarily intelligent person who breaks new ground with discoveries, inventions or works of art. Usually, a genius's work changes the way people view the world or the field in which the work took place. In other words, a genius must be both intelligent and able to use that intelligence in a productive or impressive way.

But what makes a person able to do all that? Is it a different, more agile brain? Is it exceptional intelligence? It is it an aptitude for noticing information that other people might consider irrelevant? We'll begin looking for answers to these questions at the logical starting place for looking at genius -- the human brain.

Like genius, intelligence can be difficult to quantify. Psychologists and neuroscientists study intelligence extensively. An entire field of study, known as psychometrics, is devoted to studying and measuring intelligence.