But while 'political or military vaticination' is proverbially unsafe, and therefore to be carefully avoided by all judicious inquirers, and especially by practical statesmen, it must at the same time be admitted that some of the general laws controlling such events are well understood; and whenever all the facts of a case are known and appreciated, and the laws applicable fully comprehended, then it is possible to anticipate the results of that particular combination with absolute certainty. Other causes may interfere, and modify these results--may accelerate of postpone them, or entirely absorb and conceal them in the general issue of complicated affairs. Yet the particular results themselves are not, and cannot be defeated or annulled. They are merely transformed by a sort of 'composition and resolution' of social and political causes, exactly similar to that which takes place in mechanics, when two or more forces not concurrent in direction, impel a body in a line altogether different from that in which either of the forces may have acted. Every physical impulse, it is said, which is initiated anywhere on the earth, is felt to the extremities of our solar system--every motion of the smallest particle of matter communicating its effect, however inappreciable, to the most distant planet, and as far beyond as the power of gravitation may extend. It is precisely so with all social events, even those of the most insignificant character. Every one of them has its appropriate influence, which is indestructible; and they all combine to make up the great whole of human action, the results of which at any specific period are only the necessary and inevitable consequences of all antecedent facts.