Man is distinguished, not only by his reason; but also by this singular passion from other animals... which is a lust of the mind, that by a perseverance of delight in the continual and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.  -   Thomas Hobbes     Quotes
Man is distinguished, not only by his reason; but also by this singular passion from other animals... which is a lust of the mind, that by a perseverance of delight in the continual and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure. Thomas Hobbes
 Knowledge