Which secular existentialist maintained that the freedom to define our humanity makes us responsible for the consequences of our self-definition?

You think all professors are uncoordinated, but then you see your social psychology professor make a diving catch down the left-field line at an intramural softball game against the arts department team. you also notice that your professor hits lead-off for the team and is able to score from second base on a ground-out. you maintain your original stereotype of professors as uncoordinated by deciding that this one individual is an exception to the rule because he is a “young professor.” this is an example of

How did the growth of railroads american businesses expand

What’s the reason for not digging up aztec ruins in modern mexico city