כִּשְׁרוֹן

For there is a man whose labor is with wisdom, with knowledge, and with skillfulness; yet he shall leave it for his portion to a man who has not labored for it. This also is vanity and a great evil.

Then I saw all the labor and achievement that is the envy of a man’s neighbor. This also is vanity and a striving after wind.

When goods increase, those who eat them are increased; and what advantage is there to its owner, except to feast on them with his eyes?