If people with a potential for enlightenment are willing to see in this way, they must investigate most deeply and examine most closely; all of a sudden they will gain mastery of it and have no further doubt. The reason you do not understand is just because you are taken away by random thoughts twenty-four hours a day. Since you want to learn business, you fall in love with things you see and fondly pursue things you read; over time, you get continuously involved. How can you manage to work on enlightenment then?

- Foyan (1067–1120)