From John Bunyan's classic The Pilgrim's Progress, Part I, Section 5, Step 1.
And I slept, and dreamed again, and saw the same two pilgrims going down the mountains along the highway towards the city. Now, a little below these mountains, on the left hand, lieth the country of Conceit, from which country there comes into the way in which the pilgrims walked, a little crooked lane. Here, therefore, they met with a very brisk lad that came out of that country, and his name was Ignorance. So Christian asked him from what parts he came, and whither he was going.
Ignorance: Sir, I was born in the country that lieth off there, a little on the left hand, and I am going to the Celestial City.
Christian: But how do you think to get in at the gate, for you may find some difficulty there?
Ignorance: As other good people do, said he.
Christian: But what have you to show at that gate, that the gate should be opened to you?
Ignorance: I know my Lord's will, and have been a good liver; I pay every man his own; I pray, fast, pay tithes, and give alms, and have left my country for whither I am going.
Christian: But thou camest not in at the wicket-gate, that is at the head of this way; thou camest in hither through that same crooked lane, and therefore I fear, however thou mayest think of thyself, when the reckoning-day shall come, thou wilt have laid to thy charge, that thou art a thief and a robber, instead of getting admittance into the city.
Ignorance: Gentlemen, ye be utter strangers to me; I know you not: be content to follow the religion of your country, and I will follow the religion of mine. I hope all will be well. And as for the gate that you talk of, all the world knows that is a great way off of our country. I cannot think that any man in all our parts doth so much as know the way to it; nor need they matter whether they do or no, since we have, as you see, a fine, pleasant, green lane, that comes down from our country, the next way into the way.
When Christian saw that the man was wise in his own conceit, he said to Hopeful whisperingly, "There is more hope of a fool than of him" (Prov. 26:12). And said, moreover, "When he that is a fool walketh by the way, his wisdom faileth him, and he saith to every one that he is a fool (Eccles. 10:3). What, shall we talk farther with him, or outgo him at present, and so leave him to think of what he hath heard already, and then stop again for him afterwards, and see if by degrees we can do any good to him? Then said Hopeful,
"Let Ignorance a little while now muse
On what is said, and let him not refuse
Good counsel to embrace, lest he remain
Still ignorant of what's the chiefest gain.
God saith, those that no understanding have,
(Although he made them,) them he will not save."
Hopeful: He further added, It is not good, I think, to say so to him all at once; let us pass him by, if you will, and talk to him anon, even as he is able to bear it.