Professor Gaechter says social order in general can be explained as a system in which individuals behave cooperatively and follow social rules.
VOA: special.2009.03.03
Her book shows what is possible when people come together to work cooperatively to save animals.
VOA: special.2009.11.18
"And,that they are ready to act cooperatively is also important.
VOA: standard.2009.04.01
应用推荐