In one work, this thinker used the example of Castor and Pollux sleeping in alternating shifts to demonstrate that the soul is not always thinking. A chapter in a work by this thinker contrasts certain knowledge with arguments that are likely to be true based on “probability,” or agreement between our own and others’ experiences. (-5[1])This thinker described a central concept being affected (-5[1])by (-5[1])sensory experiences of intrinsic (-5[1])“primary qualities” (10[5])and subjective (10[2]-5[1])“secondary (10[2]-5[1])qualities.” (10[17]-5[3])This (10[1])thinker argued that (10[1])reflection or sensation (10[1])informs (10[1])all “objects (10[2]-5[1])of thinking” to refute “innate ideas” (10[1])in (10[1])favor (10[1])of the human mind (-5[2])as a (10[1])blank (10[4]-5[1])slate, (10[13]-5[2])or (10[7])tabula (10[9]-5[1])rasa. (10[19])For 10 points, (10[1])name this (10[1])Enlightenment (10[3])philosopher (10[2])who wrote (10[1])An (10[1])Essay Concerning Human Understanding. (10[4]-5[1])■END■ (10[13]0[4])