Nevertheless, it is quite difficult to approach the Way without studying. Still, one cannot say that a man embodies the Way simply because he has studied and speaks well. There are also people who are naturally in harmony with the Way and who have never studied at all.
Ah, we are forgetting that sometimes books may be actively misleading, and may deviate one from truth (no matter how much you read those propaganda books, they probably won’t tell you what you really need to know).
— Yagyū Munenori, The Life-Giving Sword
A: Embodies the Way. B: Has studied. P(A|B)>P(A|~B). P(A|B)0.
“it is quite difficult to approach the Way without studying” is more like P(A|~B) << 1.
In fact, the quote says nothing at all about lower bounds on P(A|B). It’s possible that it’s even more difficult to approach the Way by studying.
True, but only if P(B) > P(~B) (that is, if more people study than don’t study).
Ah, we are forgetting that sometimes books may be actively misleading, and may deviate one from truth (no matter how much you read those propaganda books, they probably won’t tell you what you really need to know).
Ah, I had misread the quote, and confused P(A|B) with P(B|A). Nevertheless, I think your objection is with the statement that P(A|B) > P(A|~B).