Not properly the typical Fun Dept. but a whole bunch of interesting quotes related to QUALITY can be found here:
... and that does not include the famous quote by the quality guru W. Edwards Deming:
"It is not enough to do your best; you must know what to do, and then do your best."
In SW engineering, this is where processes enter. QMS Processes do tell you what to do. Then you need to know how to do (and the tools). And then you need attitude and do your best. And only then you are ready to not waste your efforts out of the window.
Source: http://quotes.deming.org/authors/W._Edwards_Deming/quote/10084