There exists a virtual museum which is absolutely wonderful to wander round if you have half an hour to spare, http://www.nli.ie/yeats/main.html. Fully worth your while.
Yeats echoes my thoughts about youth too,
‘I am persuaded that our intellects at twenty contain all the truths we shall ever find…’
The subsequent years are honing those ideas, shaping them, flexing them.
I have used illustrations originally produced by Aubrey Beardsley to enhance the text. Hope you enjoy.