The sense of shame makes its appearance in childhood. Havelock Ellis and others indeed deny this, pointing out how readily shyness is mistaken for the sense of shame. The error is common enough, but it certainly does not apply to all cases, for even in childhood we often enough encounter distinct manifestations of the sexual sense of shame. I shall not here discuss the question to what extent this sense is innate and to what extent acquired, since the matter will come up for consideration in later part of this book. Unquestionably, during childhood, the sense of shame in respect of certain processes may be awakened by means of imitation and education. Thus we may observe that many children, boys as well as girls, are greatly distressed, at any rate during the second period of childhood, at having to undress in the presence of others, and especially in the presence of persons of the opposite sex. It is interesting to learn that many homosexuals declare that even during childhood they felt ashamed when they were compelled to undress before someone of their own sex, whereas in the presence of a person of the opposite sex they were comparatively unashamed. Sanford Bell is of opinion that girl-children, although in them as in boys the sense of shame awakens comparatively early, are yet more aggressive than boys. I have not myself been able to observe any such difference. In the earlier years of childhood I have been unable to detect any notable difference in this respect between the sexes; but during the latter part of the second period of childhood, boys are unquestionably more active. In general, the girl-child, when in love, displays far less coyness and reserve than the young woman. In this respect the difference between children and adults is most marked. A girl of eleven, for example, will not make any difficulties about the exchange of love-letters with the boy she loves, or about appointments for secret meetings; whereas the young woman, at any rate when well-behaved and well brought up, is cautious in such matters. But none the less, I cannot admit that girls are more free in their behaviour in these respects than boys. We must not forget that many typical sexual differences do not develop until later in life; for this reason, if we observe in respect of the sense of shame that girls seem somewhat defective, we must contrast their condition with that which will subsequently develop as age advances, and not expect to find prematurely in the girl a keener sense of shame than is exhibited by the boy.