Alexander Pope said this quote
“ Know then thyself; presume not God to scan,The proper study of mankind is Man.Placed on this isthmus of a middle state,A being darkly wise and rudely great:With too much knowledge for the Sceptic side,And too much weakness for the Stoic's pride,He hangs between; in doubt to act or rest;In doubt to deem himself a God or Beast;In doubt his mind or body to prefer;Born but to die, and reas'ning but to err.Alike in ignorance, his reason such,Whether he thinks too little or too much. ”