What sentance and page number of the great gatsby does it say that nick carraway doesn't judge?

i have to draw a few pictures that symbolise the book "The Great Gatsby". One of my pictures is a man with a shadow. This represents nick and how he doesn't judge people openly but in the privacy of his own mind he judges all he wants. what is the page number where I can find quote(s) about nick "not being judgemental"?