Skeptic vs. Cynic
The difference between a skeptic and a cynic:
A skeptic treasures rationality and empirical evidence, wielding them as a razor to slice away at unfounded belief in an effort to improve the lives of others. A skeptic will deliver a long, detailed argument about facing reality in an effort to overcome ignorance.
A cynic treasures rationality and empirical evidence, wielding them as a cudgel in order to improve his comfort level with his own life, regardless of the impact upon the lives of others. A cynic will deliver a long, detailed argument about facing reality in an effort to overcome ignorance to your relatives as they gather around your deathbed. He's likely to have a cost-benefit analysis of your funeral arrangements in his pocket.
If mercy's a business, I wish it for you
And more than just ashes when your dreams come true.