Well, it won't hurt anything right away, but it's not ok. Your engine hates it. When you rev that low in a high gear, you're putting tremendous load on the engine. You really should learn to concentrate on your in-car driving. Make sure the car is always able to operate in its power band (generally for most Honda's, the effective power band is from 3,000 to 7,000 rpm). This will keep your car happier, keep you safer becuz you're better able to maneuver the car in the event of a sticky situation, and it will stop that awful chugging that happens when the engine gets bogged down.