The Life and Letters of Thomas Henry Huxley, vol 2
I protest that if some great Power would agree to make me always think what is true and do what is right, on condition of being turned into a sort of clock and wound up every morning before I got out of bed, I should instantly close with the offer. The only freedom I care about is the freedom to do right; the freedom to do wrong I am ready to part with on the cheapest terms to any one who will take it of me.
[This was the latest of the essays included in "Lay Sermons, Addresses and Reviews," which came out, with a dedicatory letter to Tyndall, in the summer of 1870, and, whether on account of its subject matter or its title, always remained his most popular volume of essays.
To the same period belongs a letter to Matthew Arnold about his book "St. Paul and Protestantism."]
My dear Arnold,
Many thanks for your book