In the building of character and individuality, the memory plays an important part, for upon the strength of the impressions received, and the firmness with which they are retained, depends the fibre of character and individuality. Our experiences are indeed the stepping stones to greater attainments, and at the same time our guides and protectors from danger. If the memory serves us well in this respect we are saved the pain of repeating the mistakes of the past, and may also profit by remembering and thus avoiding the mistakes of others. As Beattie says: "When memory is preternaturally defective, experience and knowledge will be deficient in proportion, and imprudent conduct and absurd opinion are the necessary consequence." Bain says: "A character retaining a feeble hold of bitter experience, or genuine delight, and unable to revive afterwards the impression of the time is in reality the victim of an intellectual weakness under the guise of a moral weakness. To have constantly before us an estimate of the things that affect us, true to the reality, is one precious condition for having our will always stimulated with an accurate reference to our happiness. The thoroughly educated man, in this respect, is he that can carry with him at all times the exact estimate of what he has enjoyed or suffered from every object that has ever affected him, and in case of encounter can present to the enemy as strong a front as if he were under the genuine impression. A full and accurate memory, for pleasure or for pain, is the intellectual basis both of prudence as regards self, and sympathy as regards others." So, we see that the cultivation of the memory is far more than the cultivation and development of a single mental faculty--it is the cultivation and development of our entire mental being--the development of our _selves_. To many persons the words memory, recollection, and remembrance, have the same meaning, but there is a great difference in the exact shade of meaning of each term. The student of this book should make the distinction between the terms, for by so doing he will be better able to grasp the various points of advice and instruction herein given. Let us examine these terms.