I applied my heart to seek and to search out by wisdom concerning all that is done under the sky. It is a heavy burden that God has given to the children of mankind to be afflicted with.
וְנָתַתִּי אֶת-לִבִּי, לִדְרוֹשׁ וְלָתוּר בַּחָכְמָה, עַל כָּל-אֲשֶׁר נַעֲשָׂה, תַּחַת הַשָּׁמָיִם; הוּא עִנְיַן רָע, נָתַן אֱלֹקים לִבְנֵי הָאָדָם--לַעֲנוֹת בּוֹ.