4:8There is one alone, and there is not a second; yea, he hath neither child nor brother: yet is there no end of all his labour; neither is his eye satisfied with riches; neither saith he, For whom do I labour, and bereave my soul of good? This is also vanity, yea, it is a sore travail.

5:10He that loveth silver shall not be satisfied with silver; nor he that loveth abundance with increase: this is also vanity.