កុំទុកចិត្តមេឃ កុំទុកចិត្តផ្កាយ។

“Do not trust the sky; do not trust the stars.”

Even the most constant-seeming things can change, so avoid placing complete, unquestioning trust in anything.

— Traditional Khmer Wisdom, Cambodia

Source: Traditional Khmer proverb (សុភាសិត), public-domain oral tradition