Read not to contradict and confute; nor to believe and take for granted; nor to find talk and discourse; but to weigh and consider.
Some books are to be tasted, others to be swallowed, and some few to be chewed and digested: that is, some books are to be read only in parts, others to be read, but not curiously, and some few to be read wholly, and with diligence and attention.
~ Francis Bacon