Let Friends in making their wills have a strict regard to justice and equity, and not be actuated by caprice and prejudice, to the injury of those who may have a reasonable expectation from their kindred and near connections. Let none (although occasion may have been given or taken) carry any resentment to the grave, remembering that we all stand in need of mercy and forgiveness. Friends are advised not to make large bequests to relatives or others who do not need them; and to remember the pressing claims of religious and social concerns.
Friends are advised, on the one hand, to make their wills as simple as possible, avoiding complicated provisions; and, on the other hand, to consider carefully circumstances which may arise after their decease, so that due provision may be made for all who ought to benefit under the will, even should births, marriages or deaths occur, which the testator had not anticipated.
See also 4.19 Advice on outward affairs