Conversation so far:
What were Havelock Ellis's views on sexual impulse in youth?
In this book, Havelock Ellis goes into vivid detail of how children can experience sexuality differently in terms of time and intensity.
What's the name of Havelock Ellis's book?
Havelock Ellis' 1933 book, Psychology of Sex, is one of the many manifestations of his interest in human sexuality.
How do children experience sexuality differently according to Havelock Ellis?
In this book, Havelock Ellis goes into vivid detail of how children can experience sexuality differently in terms of time and intensity.
What else did Havelock Ellis say about that?
Havelock Ellis mentions that it was previously believed that, in childhood, humans had no sex impulse at all.

Question: How does he explain it?
Self-contained rewrite: How does Havelock Ellis explain it?