Everyone will experience evil
Evil can live in us
Money attracts evil
The greatest relief from oppression will be Heaven
Eccl. 4:1 So I returned, and considered all the oppressions that are done under the sun: and behold the tears of such as were oppressed, and they had no comforter; and on the side of their oppressors there was power; but they had no comforter. 2 Wherefore I praised the dead which are already dead more than the living which are yet alive. 3 Yea, better is he than both they, which hath not yet been, who hath not seen the evil work that is done under the sun.
Eccl. 4:4 Again, I considered all travail, and every right work, that for this a man is envied of his neighbour. This is also vanity and vexation of spirit. 5 The fool foldeth his hands together, and eateth his own flesh. 6 Better is an handful with quietness, than both the hands full with travail and vexation of spirit.