|As heard from Eiezer Zalmanov|
A hint to this trait we find in the verse, where Yaakov worries he is in overdraft on his account of goodnesses God has dispatched his way (Gen.32:11).
The gemora (Sotah 5a) reminds us a Torah scholar must have only an eighth of an eight of haughtiness (= 1/64)! Otherwise he is arrogant!
By divine providence, the above verse falls out to be the 8th in the 8th parsha. Yaakov's "smallness" of 1 in 8 by 8 is quite fitting therefore. Were he to become even one notch haughtier, that would yield 1/63, which would already be too much, as suggested by the gematria of haughtiness ( גס = 63).
A pertinent anecdote:
As a single man, after having attended Chabad yeshiva after becoming observant, a Skolener Chassid hosted me at their house for a weekend in Borough Park, Brooklyn.
That Shabbos the host said to me, "I'll take you to a lecture given by one of the brightest rabbis in the community." I was delighted. He escorted me to a shul, then continued on his way. I walked in and the place was packed. I stood in the back.
After listening some 15 minutes I found myself fidgety. The rabbi speaker kept saying things like, "When I discovered this ...", "Yesterday when I told you ...", and "I think that ...".
I was glad to be standing at the back of the shul because I quickly made my way out the door.
When my host discovered my premature exit, he asked "Why?". I told him "I could not tolerate all his 'I this' and 'I that'". He laughed and said, "Now you've learned a key feature of Chassidus!"