帮忙找个英文原句,关于达尔文说的.我所学到的任何有价值的知识都是由自学中得来的.——达尔文英文的原文是什么?

I have learned anything of value from self-knowledge are obtained in the

我所学到的任何有价值的知识都是由自学中得来的.——达尔文
All the valuable knowledge that i learn is through self-study
-- Charles Robert Darwin