Saving Lives

Dear Rabbi, I am aware that Judaism teaches that if one is being forced to murder another, or they themselves will be murdered, that person should not murder another and accept death upon themselves. But what about the situation where if one does nothing the other will die. For example, if (God forbid) one sees a little child run out on the street, does Jewish law state that we have to rescue that child, even if it puts us in great peril ?

Jewish Law states quite clearly that a person is obligated to everything that he can to try and save another person from danger, but that does not mean that he must put himself in a life-threatening situation to do so. For example, someone who is not an expert swimmer would have no obligation to dive into the water to save someone who is being dragged under by heavy currents. On the other hand, he would be obligated to do everything else in his powers to try and save the drowning person.