If there is any single factor ...

If there is any single factor that makes for success in living, it is the ability to draw dividends from defeat.
 William Moulton Marston

Quotes from the same author

Normal men retain their childish longing for a woman to mother them. At adolescence a new desire is added. They want a girl to allure them. When you put these two together, you have the typical male yearning that Wonder Woman satisfies.
 William Moulton Marston
Comics play a trite but lusty tune on the C natural keys of human nature. They rouse the most primitive, but also the most powerful, reverberations in the noisy cranial sound-box of consciousness, drowning out more subtle symphonies. Comics scorn finesse, thereby incurring the wrath of linguistic adepts. They defy the limits of accepted fact and convention, thus amortizing to apoplexy the ossified arteries of routine thought.
 William Moulton Marston
Comics speak, without qualm or sophistication, to the innermost ears of the wishful self. The response is like that of a thirsty traveler who suddenly finds water in the desert - he drinks to satiation.
 William Moulton Marston