Nothing At All
I have seen that every labor and every skill which is done is the result of rivalry between a man and his neighbor. This too is vanity and striving after wind.
Ecclesiastes 4:4
There is a way which seems right to a man, But its end is the way of death (Proverbs 14:12, Proverbs 16:25). There is that which looks like labor and achievement, but, as a despondent King Solomon observed, it all the result of rivalry, envy, between a man and his neighbor. It is vanity, meaningless, and a striving after the wind.
Consider the words of the apostle John. He said that everyone who truly loves is born of God (1 John 4:7). If love is the restoration God is looking to bring to the human heart (Matthew 22:40), then love is principally the one thing which fallen man cannot do (1 Peter 1:22, Galatians 5:6). There is no true benevolence, as King Solomon pointed out, there is no real industry. What appears to be love at the outset is really a misidentified attempting to gratify the flesh.