Final answer:
Harry Harlow and others emphasized the importance of contact comfort for children's survival, suggesting that nurture goes beyond basic physical needs to include emotional support and loving interactions.
Step-by-step explanation:
The statement, "In order to survive, it is essential that children have not only nutrition and shelter but contact comfort as well", is likely to have been said by researchers such as Harry Harlow, John Bowlby, or Mary Ainsworth, who all contributed to our understanding of the importance of emotional comfort and security in early childhood development. The Harlows' studies on rhesus monkeys revealed that beyond sustenance, the provision of a nurturing touch and emotional support, as exemplified by the preference of monkeys for a soft, terrycloth mother over a wire one, is crucial for healthy psychological development. This concept translates to human children, as evidenced by cases like that of Danielle, who suffered due to a lack of social interaction and was not socialized, missing crucial developmental milestones and the development of 'self.'