What has a man from all the toil and strain with which he toils beneath the sun? For all his days are full of pain, and his work is a vexation; even in the night his mind does not rest. This also is vanity. There is nothing better for a man than that he should eat and drink, and find enjoyment in his toil. This also, I saw, is from the hand of God; for apart from him who can eat or who can have enjoyment?
–Ecclesiastes 2: 22-25