Knowledge is always colorful,even the Knowlege in science.Admitng that the existence of electron is in the form of elextron cloud,is more or less equal to admiting that we are living in a universe without morals.Comparing with physics,biology could influense our mood with more ease.After all Darwinism have something to do with the concentration camp .As for the psychology,
personaly ,I think it has never succeed in being objective.Frued is a scienist who found something new ,or he is a poemist express
our nature in an affective way .