Not that the last couple of years haven’t seen their shares of poorly-educated and tasteless behavior….
Literally: one – dragon – one – boar/pig
Alternately: A saying that expresses the value of education. The difference between someone who applies themselves diligently to their studies, and someone who slacks off, is like that between a dragon (clever, powerful, successful), and a pig (shameless, dirty, not that bright).
The 竜 may also be pronounced ryuu, or replaced with synonymous homophone 龍.