A person who believes that he is incapable will not make a real effort,because he feels that it would be useless.He won’t go at a job with the confidence __61___ for success.He is therefore __62 __ to fail,and the failure will strengthen his belief in his incompetence.Alfred Adler,a famous doctor,had an experience __63 __ illustrates this.When he was a small boy he was poor at arithmetic.His teacher got the idea that he had no ability in arithmetic,and told his parents what she thought in order that they would not expect __64 __ much of him.__65 __ this way,they too developed the idea,“Isn’t it too bad that Alfred can’t do arithmetic?” He accepted their mistaken estimate of his ability,felt that it was __66 ___ to try,and was very poor at arithmetic,just as they expected.One day Adler succeeded in solving a problem which __67 __ of the other students had been able to solve.This gave him confidence.He __68 __ the idea that he couldn’t do arithmetic and was determined to show them that he could.His new __69 __ confidence stimulated him to go at arithmetic problems with a new spirit.He now worked with interest,__70___,and purpose,and he soon became extraordinarily good at arithmetic.