what advice from his father does the narrator Nick Carraway, quote at the beginning of chapter 1

"Whenever you feel like criticizing anyone, just remember that all the people in this world haven't had the advantages that you've had."

―"In consequence, I‘m inclined to reserve all judgments, a habit that has opened up many curious natures to me and also
made me the victim of not a few veteran bores…Reserving judgments is a matter of infinite hope. I am still a little afraid
of missing something if I forget that, as my father snobbishly suggested, and I snobbishly repeat, a sense of the
fundamental decencies is parceled out unequally at birth " (1.2)