It is permitted to deviate from the truth out of humility, or to protect one’s privacy or avoid embarrassment, although there is no mitzva to do so (as there is to preserve the peace). For example, we may cover up details of our intimate life for modesty’s sake, we may hide the fact we are going to hospital for medical treatment if this embarrasses us, and we may conceal our impressive knowledge or good deeds to keep ourselves humble.
