First, especially mental warehouse : temperament , speed of mental reactions , intelligence . All this is given to man by inheritance. Second, the experience of childhood and memories of childhood . Everyone has their own childhood experiences , their experiences , each in his own world opened , each in its own experienced childhood fears , failures or joy. Third, particular individual biography : each lives his life , and everything that happens to him , and how it relates to this , it does not appear on the lives of others. Fourthly , inconsistency vital roles. In every life multiple roles he "plays"
