Final answer:
The line from the excerpt that expresses fact rather than opinion is: 'Everything...comes from the lone worker who follows the fleeting inspiration of a moment and finally does something that has not been done before.'
Step-by-step explanation:
The line from the excerpt that expresses fact rather than opinion is:
'Everything...comes from the lone worker who follows the fleeting inspiration of a moment and finally does something that has not been done before.'
This statement is a general statement about the process of invention and does not contain any subjective or opinionated language.