A person's true character is revealed by what he does when no one is watching.
Obey them not only to win their favor when their eye is on you, but like slaves of Christ, doing the will of God from your heart. - Ephesians 6:6
Sometimes I forget that I'm doing my work for God and not for my boss. It sure makes a big difference in how I approach things. If God is the one grading my work, I feel the inclination to work a lot harder.