And I applied my heart to seek and to search out by wisdom concerning all that is done under the heavens. It is a burdensome business that God has given to the sons of men to be busied with. Bible other translations

“applied my heart.” The Hebrew text is more literally, “gave my heart,” but this could be confusing in English because when a person “gives their heart” to something, like a girl giving her heart to a boy, the boy usually woos the girl. But in this case, wisdom did not woo the Sage, he applied his heart to it. And that is how we acquire wisdom; we apply ourselves to it.

Commentary for: Ecclesiastes 1:13