On this verge the finite mind must pause; to question that life is to add a terrible burden to all human woe; it need not be questioned. But to question the power of anything in that life to manifest itself to man through natural law, is to do what science has a right to do. 'The living know that they shall die: but the dead know not any thing ... neither have they any more a portion for ever in any thing that is done under the sun.'[112]