The nature and depth of human pride are illuminated by comparing boasting to self-pity. Both are manifestations of pride. Boasting is the response of pride to success. Self-pity is the response of pride to suffering. Boasting says, 'I deserve admiration because I have achieved so much.' Self-pity says, 'I deserve admiration because I have suffered so much.' Boasting is the voice of pride in the heart of the strong. Self-pity is the voice of pride in the heart of the weak. Boasting sounds self-sufficient. Self-pity sounds self-sacrificing. The reason self-pity does not look like pride is that it appears to be so needy. But the need arises from a wounded ego. It doesn't come from a sense of unworthiness, but from a sense of unrecognized worthiness. It is the response of unapplauded pride. Christian Hedonism severs the root of self-pity. People don't feel self-pity when suffering is accepted for the sake of joy.
John Piper