Remember in Algebra I how you always had to show your work? That's the idea James is getting at here.
James 3:13-18 (New Living Translation)
13 If you are wise and understand God's ways, prove it by living an honorable life, doing good works with the humility that comes from wisdom. 14 But if you are bitterly jealous and there is selfish ambition in your heart, don't cover up the truth with boasting and lying. 15 For jealousy and selfishness are not God's kind of wisdom. Such things are earthly, unspiritual, and demonic. 16 For wherever there is jealousy and selfish ambition, there you will find disorder and evil of every kind.
So, here's the extra credit.
17 But the wisdom from above is first of all pure. It is also peace loving, gentle at all times, and willing to yield to others. It is full of mercy and good deeds. It shows no favoritism and is always sincere. 18 And those who are peacemakers will plant seeds of peace and reap a harvest of righteousness.
This is 411God.