关于心理学定义的中译英

把这段文字翻译成英文?
Psychology is that one method with science studies human being displays the science with implicit behavior outside any , the outside displays arriving at being to refer to observation or measurement being able to be open , that the inner hides is behavior refer to the mentality not being able to be known clearly by the observer.

Psychology is the discipline concerned with behaviour and mental processes and how they are affected by an organism's physical state, mental state, and external environment.

这是我从UBC的心理学书上抄下来的,你要觉得不对那我也没办法.