modify quote, and source

[Mary]

these two quotes are from Orthodoxy:
https://www.goodreads.com/quotes/8822...
https://www.goodreads.com/quotes/6992...

Also, the second one has a slight error: it should be " they can take themselves lightly"

[Catalina]

I added the source but sadly the second quote has too many likes for me to be able to edit it. I'm sure a super will edit it as soon as they see the topic.

[Michael]

Verified the quote here and corrected.