אֲבָנִ֤ים ׀ שָׁ֥חֲקוּ מַ֗יִם תִּשְׁטֹֽף־סְפִיחֶ֥יהָ עֲפַר־אָ֑רֶץ וְתִקְוַ֖ת אֱנ֣וֹשׁ הֶאֱבַֽדְתָּ׃
The waters wear the stones; The overflowings thereof wash away the dust of the earth; So Thou destroyest the hope of man.
Pirkei Avot
Rabbi Levitas a man of Yavneh said: be exceeding humble spirit, for the end of man is the worm. Rabbi Yohanan ben Berokah said: whoever profanes the name of heaven in secret, he shall be punished in the open. Unwittingly or wittingly, it is all one in profaning the name.