Readers may be divided into four classes
1.) Sponges, who absorb all that they read and return it in nearly the same state, only a little dirtied. 2.) Sand-glasses, who retain nothing and are content to getthrough a book for the sake of getting through the time. 3.) Strain-bags, who retain merely the dregs of what they read.
4.) Mogul diamonds, equally rare and valuable, who profit by what they read, and enable others to profit by it also.
~ Samuel Taylor Coleridge ~