3 Amid these many and pressing evils, which are the more serious because they are already of long duration, nothing must be left undone by Us which can afford any hope of relief. With this purpose, and in this hope, We proclaim a sacred Jubilee to all those who have their salvation at heart, and need to be reminded and exhorted to raise their thoughts, now busied with worldly matters, to the contemplation of heavenly things. And this with a gain not merely to the individuals themselves, but to the whole future well-being of the commonwealth, because in proportion as individual citizens advance along the path of perfection, there is a corresponding increase in the general rectitude and probity, in the public life and morals of the nation.
Source: Quod Auctoritate (Vatican.va)