I guess it depends. I've always liked this phrase, and it's not exclusive to the Christian Bible- it's in other Abrahamic faiths:

"“Because knowledge of the mysteries of the kingdom of heaven has been granted to you, but to them it has not been granted. To anyone who has, more will be given and he will grow rich; from anyone who has not, even what he has will be taken away. This is why I speak to them in parables, because ‘they look but do not see and hear but do not listen or understand.’ Isaiah’s prophecy is fulfilled in them… But blessed are your eyes, because they see, and your ears, because they hear.” – Matthew 13:11-14, 16"

Though I have to say, what is in the ten commandments isn't the most terrible advice. :)