Very true, knowledge is dangerous, but ignorance is more dangerous still; or, rather, partial knowledge is more dangerous than a more complete understanding of facts. Children, young people, will not grow up in innocent ignorance. If, in obedience to custom, they are not encouraged to inquire of their parents about the mysteries of life, they will seek to satisfy their curiosity by appealing to older or better informed companions. They will eagerly read any book which promises any hint on the mysterious subject, and will embrace every opportunity, proper or improper--and most likely to be the latter--of obtaining the coveted information. Knowledge obtained in this uncertain and irregular way must of necessity be very unreliable. Many times--generally, in fact--it is of a most corrupting character, and the clandestine manner in which it is obtained is itself corrupting and demoralizing. A child ought to be taught to expect all such information from its parents, and it ought not to be disappointed. Again, while it is true that knowledge is dangerous, it is equally true that this dangerous knowledge will be gained sometime, at any rate; and as it must come, better let it be imparted by the parent, who can administer proper warnings and cautions along with it, than by any other individual. Thus may the child be shielded from injury to which he would otherwise be certainly exposed. III. _Young people should be left to find out these things for themselves._ If human beings received much of their knowledge through instinct, as animals do, this might be a proper course; but man gets his knowledge largely by instruction. Young people will get their first knowledge of sexual matters mostly by instruction from some source. How much better, then, as we have already shown, to let them obtain this knowledge from the most natural and most reliable source! The following paragraph from Dr. Ware is to the point:-- "But putting aside the question whether we ought to hide this subject wholly from the young if we could, the truth, it is to be feared, is that we cannot if we would. Admitting it to be desirable, every man of experience in life will pronounce it to be impracticable. If, then, we cannot prevent the minds of children from being engaged in some way on this subject, may it not be better to forestall evil impressions by implanting good ones, or at least to mingle such good ones with the evil as the nature of the case admits? Let us be at least as wise as the crafty enemy of man, and cast in a little wheat with his tares; and among the most effectual methods of doing this is to impart to the young just and religious views of the nature and purposes of the relation which the Creator has established between the two sexes."