The Lego Movie and Fahrenheit 451: More Alike than You Think

To me, this quote means to dare to be different.  I think Juan Ramon Jimenez is talking about how in a society with a lot of rules, the people who make a difference are the people who are not afraid to think outside the box, to dare to be different, to make a brave choice.

A recent example I found that relates to this quote is "The Lego Movie."  In "The Lego Movie," everyone sings the same song ("Everything is Awesome", watches the same show (Where are my pants?) and does whatever Lord Business expects them to do.

There are actually several examples of people who dare to be different.  These include all the master builders, Cloud Cuckooland, and even Emmett.