“We can’t define anything precisely. If we attempt to, we get into that paralysis of thought that comes to philosophers… one saying to the other: “you don’t know what you are talking about!”. The second one says: ‘what do you mean by talking? What do you mean by you? What do you mean by know?'”
http://youtu.be/F9Y4S6hg3Qc
+ “My Orange Juice”