He may have just been one dog, but his message saved the lives of thousands of others and indefinitely changed public perception of puppy mills for the better. (onegreenplanet.org)
Changing public perception in this way will not be easy, but is probably necessary if we are to solve the greenhouse / climate change problem. (ramblingsdc.net)
Second and perhaps most important is changing public perception on human rights by make the positive case for a continued commitment to a robust human rights system. (blog.politics.ox.ac.uk)