Translation:Mishnah/Seder Nezikin/Tractate Avot/Chapter 1/11

English Translation

Avtaloyon said:
Sages, be careful with your words,
unless you are exiled to a place of evil water [heretic teachings; see note].
The following students might drink and profane the name of the Heavens.

[Note: "Evil water" can be translated as "heretic teachings" because Torah is often referred to as mayim (water).]