Detailed Instructions: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
Problem:Max Lu scher ( September 9 , 1923 February 2 , 2017 ) was a Swiss psychotherapist known for inventing the Lu scher color test , a tool for measuring an individual 's psychophysical state based on his or her color preferences .
Solution:
Max Lu scher ( September 9 , 1923 February 2 , 2017 ) was a Swiss psychotherapist .