So the struck eagle, stretchd upon the plain, No more through rolling clouds to soar again, Viewd his own feather on the fatal dart, And wingd the shaft that quiverd in his heart. – Lord (George Gordon) Byron
What then do you call your soul? What idea have you of it? You cannot of yourselves, without revelation, admit the existence within you of anything but a power unknown to you of feeling and thinking. – Voltaire
There is a wisdom in this beyond the rules of physic: a mans own observation what he finds good of and what he finds hurt of is the best physic to preserve health. – Francis Bacon