20. Famous physicist Stephen Hawking developed symptoms of ALS which eventually left him wheelchair-bound and only able to speak through a computer. Even though he experienced disability, he was still able to formulate his theories on black holes and even had a theoretical variety of radiation named after him.
90. In psychology, there are many who support the idea that behavior and reactions are built in to each individual person. They believe that human beings act and react according to specific stimuli. Others believe that social interaction and other factors can alter and change behavior over time, regardless of how the person initially behaved.