There are two kinds of people in this world, according to author Ted Stewart: giants and dwarfs.
"Through the centuries, the image of a dwarf sitting on the shoulder of a giant has been used to express the idea that we owe our own successes largely to the contributions of great people," Stewart wrote in the book's introduction.
In his new book, "The Mark of a Giant: Seven People Who Changed the World," the New York Times bestselling author has placed a magnifying glass on the lives of seven giants in hopes of inspiring those in the world who feel small.