True art and true science possess two unmistakable marks: the first, an inward mark, which is this, that the servitor of art and science will fulfil his vocation, not for profit but with self- sacrifice; and the second, an external sign, his productions will be intelligible to all the people whose welfare he has in view.
Leo TolstoyWhat are wanted ...are not Constitutions and Revolutions, nor all sorts of Conferences and Congresses, nor the many ingenious devices for submarine navigation and aerial navigation, nor powerful explosives, nor all sorts of conveniences to add to the enjoyment of the rich, ruling classes... but one thing only is needful: the knowledge of the simple and clear truth ...that for our life one law is valid - the law of love, which brings the highest happiness to every individual as well as to all mankind.
Leo Tolstoy