Each person perceives an object in exactly the same way.
Each day, we wake up and start to extensively use our senses to see and interact with millions of objects throughout the day. The main senses we use are touch and vision, but with such things as colour blindness it can be easily doubted whether people perceive the objects exactly the same way. Image for example that if we all saw colours differently depending on the genes or such, just like wearing different colour lenses since the moment you were born. You would be forces to learn the colours but you cannot compare how two people see the same real colour. Two people shown a rose, might both say its red, but one may see it as other persons green and vice versa.
We all see colours a little differently, and it can be easily shown in an experiment. Close one eye and look at some very bright colour for few minutes. After it, open the other eye and close the first. You should see an obvious difference in contrast by switching the eyes repetitively. Different people who live in different parts of the world will certainly see some colours differently. In this case I"m not talking about handicapped people who are heavily colour blind as they are either extreme examples of this or have malfunctioning perception from birth. What I am talking about is how for example people living in such place as Siberia who will very often see white as their primary surrounding colour will see colours green colour quiet differently to those people living in the tropics. Other people may have sum misbalance in comparison of their two eyes. One may see a little differently from the other but as we use two at the same time the difference is levelled out.
