that's what books will not tell me

This is from the novel Tess of the d'Urbervilles by Thomas Hardy. It was written in 1891.

Tess: "Sometimes I feel I don't want to know anything more about it than I know already." 

Angel: "Why not?" 

"Because what's the use of learning that I am one of a long row only— finding out that there is set down in some old book somebody just like me, and to know that I shall only act her part; making me sad, that's all. The best is not to remember that your nature and your past doings have been just like thousands' and thousands', and that your coming life and doings 'll be like thousands's and thousands'."

"What, really, then, you don't want to learn anything?" 

"I shouldn't mind learning why— why the sun do shine on the just and the unjust alike," she answered, with a slight quaver in her voice. "But that's what books will not tell me."