Which virtue did only Jesus teach and practice?

Almost all religions teach good morals and virtues to their followers. In the case of Christianity the Lord Jesus Christ is not only the center of Christianity, but also the highest perfect model that Christians should follow. Jesus taught and practiced many virtues that we read in the New Testament, some of which can be seen in some form in other religions that preexist Christianity. However, there are some teachings that Jesus taught and practiced which do not seem to be present in any ancient religions. Therefore, my question: **Is there any virtue or teaching based on the New Testament that is unique to Jesus till today?**