Final answer:
The concept in John Rawls' philosophy that is similar to the concept of the 'state of nature' is the original position.
Step-by-step explanation:
In John Rawls' philosophy, the concept that is similar to the concept of the 'state of nature' is the original position. The original position is a hypothetical situation where individuals are placed behind a 'veil of ignorance' and make decisions about what principles should govern society without knowing their own personal circumstances. This is similar to the state of nature in that both assume a situation where individuals are making decisions without the presence of an established government.