Viktor E. Frankl said this quote
“ Sigmund Freud once asserted, Let one attempt to expose a number of the most diverse people uniformly to hunger. With the increase of the imperative urge of hunger all individual differences will blur, and in their stead will appear the uniform expression of the one unstilled urge. Thank heaven, Sigmund Freud was spared knowing the concentration camps from the inside. His subjects lay on a couch designed in the plush style of Victorian culture, not in the filth of Auschwitz. There, the individual differences did not blur but, on the contrary, people became more different; people unmasked themselves, both the swine and the saints. ”