Parents should remember that association with those of lax morals and coarseness of character will have a detrimental influence upon the youth. If they fail to choose proper society for their children, if they allow them to associate with youth of questionable morals, they place them, or permit them to place themselves, in a school where lessons of depravity are taught and practiced. They may feel their children are strong enough to withstand temptation, but how can they be sure of this? it is far easier to yield to evil influences than to resist them. Ere they are aware of it, their children may become imbued with the spirit of their associates and may be degraded or ruined.     EGW Adventist Home p. 476-468
Every association we form, however limited, exerts some influence on us. The extent to which we yield to that influence will be determined by the degree of intimacy, the constancy of the intercourse, and our love and veneration for the one with whom we associate.    Adventis Home p.459
They have a keen ear for music, and satan knows what organs to excite to animate, engross and charm the mind so tht Christ is not desired.     Adventist Home p. 407
The Lord has entrusted to parents a solemn, sacred work. They are to cultivate carefully the soil of the heart. Thus they may be laborers togeather with God. He expects them to guard and tend carefully the garden of their childrens's hearts. They are to sow the good seed , weeding out every unsightly weed... You have before your own door a little plot of ground to care for, and God will hold you responsible for this work which He has left in your hands.    Adventist Home p. 200