 Furthermore, altruistic acts need not involve self-sacrifice, and they remain altruistic even when they are performed from a mixture of motives, some of which are self-interested. The driver in the preceding example may have plenty of time to get where she is going; slowing down and paying extra attention may not be contrary to her own good. Even so, her act counts as altruistic if one of her motives for being cautious is her concern for the children for their sake. She may also be aware that if she injures a child, she could be punished for reckless driving, which she of course wants to avoid for self-interested reasons. So, her caution is both altruistic and self-interested; it is not motivated by only one kind of reason. We should not be confused by the fact that “self-interested” and “altruistic” are opposites. A single motive cannot be characterized in both ways; but a single act can be undertaken from both motives.