在英文quotation中,一堆弔詭的數字編碼

"We are such stuff
As dreams are made on; and our little life
Is rounded with a sleep."
--Prospero from (4.1.156-8), "The Tempest"

這是網路上看到的一則貼文
想請問 from 後面那些數字是什麼意思
是指那本書的第幾頁嗎?
1 個解答 1