The Teacher says: I discovered this while trying to discover the scheme of things, item by item.

I tried ¹  to understand, examine, and comprehend ²  the role of ³  wisdom in the scheme of things, ⁴  and to understand the stupidity of wickedness ⁵  and the insanity of folly. ⁶ 

Whatever you find to do with your hands, ¹  do it with all your might, because there is neither work nor planning nor knowledge nor wisdom in the grave, ²  the place where you will eventually go. ³