I believe that the work is Marc Anthony's Speech from Shakespeare's Julius Caesar ,and the full line is:
O judgment! thou art fled to brutish beasts,
and his purpose is to say that the judgement is not following the reason, but instead that people follow the wrong people in their judgement (those people is what he means by "brutish beasts")
The plot is rather simple, two people who are married to other people fall in love with each other and want to be together but can't because of their respective marriages. The entire play is just one part, or one act, and it's a comical version of the commonly understood Arthurian characters and cliches.
Answer:
It is a mercy he didn't shake his arm off.
Explanation:
Though, admittedly, this is one of those rare times that I am not 100% confident with my response.
According to Tyson, the Hayden Planetarium project in 2000 presented Pluto for the first time not as a regular part of the Solar System (which is to say, as a number of planets), but according to its physical features. There were four "rocky, terrestrial objects", four "gas giants", and Pluto didn't belong to either of those groups. Instead, it was classified as an "icy object", along with many others. This was the turning point for the media, who interpreted this as stripping Pluto of its planetary status (and honor). The science was compelled to interfere, so that 6 years later, on an international conference, Pluto was proclaimed a dwarf planet, as a middle-ground solution. Tyson deals with the public attention that Pluto has received in the prior and following years.