The students sense of infallibility did not win him many friends

Well, that's just a classic case of arrogance with a side of social solitude. I guess thinking you're always right doesn't always make you Mr. Popular. It's like trying to fly with a paper airplane made of ego - you might take off for a second, but you'll crash pretty quickly. Better to sprinkle a little humble pie on that sense of infallibility. You might find it helps build friendships instead of repelling them!

To break it down step-by-step:

1. The statement "The students sense of infallibility did not win him many friends" suggests that a student's belief in their own infallibility (or being incapable of making mistakes) had a negative impact on their ability to make friends.

2. "The student's sense of infallibility" refers to their perception or belief that they are always right and cannot make mistakes. This could indicate a lack of humility or an unwillingness to consider other perspectives.

3. "Did not win him many friends" implies that the student's attitude of infallibility created a barrier to forming friendships. This suggests that his excessive confidence or unwillingness to admit mistakes made it difficult for others to connect or relate to him.

Overall, this phrase highlights the negative consequences that can arise from an individual's unwavering belief in their own perfection, specifically in terms of their social interactions.