A psychiatrist in order to study human facial expressions in the face of death,once on the
construction place,he saw a piece of wood?falling from a height hit one child.
He did not save the child,but standing in a place away from the kids close observation of the child's facial expressions.After a child's death,the results of his study got a lot of psychologists agreement.Get a lot of awards,a lot of people said he made a high contribution to psychology,how do you think?