He knew not to go from prostitute to prostitute, but he did. He knew not to feed pigs. A Jewish boy feeding pigs is the end of the world. But he trampled on his conscience and he did it. He found out what some need to learn, reason will justify what conscience condemns.
Reason is intellect.
Now follow this. Let's say that you are driving east on US 36 about 80 miles an hour and the sheriff's dept. And you know how fast you were driving. You have already got 2 tickets in the last 2 months and if you get a 3rd you are going to get a bike. Conscience says to tell him you were going 80 and that you are sorry that you drive 80 every day and that you are guilty, guilty, guilty.