Precisely what menstruation is, is not yet very well known.

quote by Granville Stanley Hall
Added by Lucian Velea
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Puberty for a girl is like floating down a broadening river into an open sea.

quote by Granville Stanley Hall
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Adolescence as the time when an individual 'recapitulates' the savage stage of the race's past.

quote by Granville Stanley Hall
Added by Lucian Velea
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