Yoda: [Looking away from Luke] I cannot teach him. The boy has no patience.
Obi-Wan: [voice-over] He will learn patience.
Yoda: Much anger in him... like his father.
Obi-Wan: [voice] Was I any different when you taught me?
In the second question's answers, we learn that Yoda may have taught Ben a little bit. Ok, so this quote makes sense. However, I find the lack of sense of this one... disturbing.
Luke lies face down in the snow, nearly unconscious. Slowly he looks up and sees Ben Kenobi, barely visible through the blowing snow. It is hard to tell if Kenobi is real or a hallucination.
LUKE: (weakly) Ben?
BEN: You will go to the Dagobah system.
LUKE: Dagobah system?
BEN: There you will learn from Yoda, the Jedi Master who instructed me.
The image of Ben fades, revealing a lone Tauntaun rider approaching from the windswept horizon.
LUKE: (groaning faintly) Ben...Ben.
Emphasis mine again.
Indeed, (teaching in some boot camp once in a while) vs. (years of private training with his master) doesn't look like a victory for boot camp to me.
The question: Why would Ben tell Luke that Yoda was The Jedi Master who he learned from ?
(Different, thus not duplicate, than Did Yoda really instructed Ben ?)
Of course, the obvious out-universe reason would be Georges Lucas, but a in-universe would be appreciated. Was hiding Qui-Gon's role in Obi-Wan's training something important ?