Careful and Careless
Careful and careless are as different as fire and water. But strangely, many scientists have both these qualities, that is, they are both careful and careless. Newton, the well known English scientist, is such a person. Once Newton invited a friend to dinner at home. When they were ready to eat, Newton left to get a bottle of wine. But after his friend had waited for a long time, Newton still didn't come back. Finally his friend found Newton in his lab. The reason was that when Newton was going to get the bottle of wine, he suddenly had a new idea for the experiment he was doing, so he completely forgot his friend and the dinner.