MANY NEW THINGS ARE UNNOTICED; NOTHING FORCES THE PERCEPTION OF NEW THINGS.

8. It is not necessary to remember all one sees, nor by imagination to represent to oneself all the things that follow fortuitously. Besides, when the mind possesses a knowledge and a clear conception of certain objects which later come to offer themselves to his senses, nothing forces him to abandon the knowledge he has acquired by intelligence, to look at the particular sense-object which is in front of him, unless he be charged to administer some of the particular things contained in the notion of the all.