“Now a willpower that I have polished with an artist's delight will sustain some shaky legs and some weary lungs. I will do it. Give a thought once in awhile to this little soldier of fortune of the twentieth century.”

Source: The Lonely Dead (2004), Ch. 27

The Confession (c. 452?)
Context: For some time I have thought of writing, but I have hesitated until now, for truly, I feared to expose myself to the criticism of men, because I have not studied like others, who have assimilated both Law and the Holy Scriptures equally and have never changed their idiom since their infancy, but instead were always learning it increasingly, to perfection, while my idiom and language have been translated into a foreign tongue. So it is easy to prove from a sample of my writing, my ability in rhetoric and the extent of my preparation and knowledge, for as it is said, 'wisdom shall be recognized in speech, and in understanding, and in knowledge and in the learning of truth.

Source: Meditations

MS. Rawl 85 (1588), p. 17.

The Dimbleby Lecture 2000

Address at the Belgrade train station (1 June 1892)

Variant: You could attach prices to ideas. Some cost a lot some little. … And how do you pay for ideas? I believe: with courage.
Source: Culture and Value (1980), p. 52e

Geek Speak Magazine Interview (2010)