In English
As a result of the passage of time, we find that the continents on the earth, the seas, and the very sources of the rivers have undergone great changes. A river which may have flowed in a particular direction some centuries ago will be flowing in a different direction now. That river may have changed its course. We will find that there is a very marked difference between the course taken by a river some centuries ago and the course taken by the same river at the present time. But when the man of today looks at the course taken by the river today, he transfers it to what is in his concept; and he thinks that the river took the same course some centuries ago also. This is not right.