The term for justice in the Sikh tradition is "niau". It is related to the term "dharam" which in Sikhism connotes 'moral order' and righteousness (derived from but become distinct from the etymologically related Hindu concept of dharma). According to the Tenth Sikh Guru Guru Gobind Singh, states Pashaura Singh (a professor of Sikh studies), "one must first try all the peaceful means of negotiation in the pursuit of justice" and if these fail then it is legitimate to "draw the sword in defense of righteousness". Sikhism considers "an attack on dharam is an attack on justice, on righteousness, and on the moral order generally" and the dharam "must be defended at all costs". The divine name is its antidote for pain and vices. Forgiveness is taught as a virtue in Sikhism, yet it also teaches its faithful to shun those with evil intentions and to pick up the sword to fight injustice and religious persecution.