תלמוד על אבות 2:4

There, we have stated²⁵³Mishnah Avot 2:4.: “Do not believe in yourself up to the day of your death.” It happened that a pious man sat and stated, do not believe in yourself up to your old age, as I Am. There came a spirit to tempt him, and he started to err after her²⁵⁴He asked her for sex.. She told him, do not feel bad, I am a spirit. Go and be equal to your colleagues²⁵⁵Formulate the Mishnah to read “up to the day of your death.”.

Hillel would say: Do not separate yourself from the community.