Men need but understand this: they need but stop troubling themselves about external and general matters, in which they are not free, and use but one hundredth part of the energy, which they employ on external matters, on what they are free in, on the recognition and profession of the truth which stands before them, on the emancipation of themselves and of men from the lie and hypocrisy which conceal the truth, in order that without effort and struggle there should at once be destroyed that false structure of life which torments people and threatens them with still worse calamities, and that there should be realized that kingdom of God or at least that first step of it, for which men are already prepared according to their consciousness.
Just as one jolt is sufficient for a liquid that is saturated with salt suddenly to become crystallized, thus, perhaps, the smallest effort will suffice for the truth, which is already revealed to men, to take hold of hundreds, thousands, millions of men,—for a public opinion to be established to correspond to the consciousness, and, in consequence of its establishment, for the whole structure of the existing life to be changed. And it depends on us to make this effort.
–Leo Tolstoy, The Kingdom of God Is Within You