| 1 | Scientists use reason to understand nature. | |
| 2 | "Cigarette addiction was stronger than any rational aspect of the illness," Mr. Rorandelli said. | |
| 3 | The whole rational cognition is an important ingredient for a novelist to achieve much in creation. | |
| 4 | Fundamentally, a rational understanding of plant biology should be constructed as a whole in the mind of students. | |
| 5 | If he considers rational knowledge are not from perceptual knowledge,then he is Idealist. |