I should point out that with our honor system, users aren't only rewarded for donating, but also for participating. (theabundantartist.com)
I'm pleased that writing to a member of the armed services was not only rewarding for you, but also became the pathway to your future. (articles.chicagotribune.com)
It is possible to train a dog to a very high standard using only rewards. (thehappypuppysite.com)