Tricycle interviews poet Arthur Sze.

Then I learned that [the 20th century German philosopher] Martin Heidegger advocated for strike-through lines and said: “Because the words are necessary, they remain legible. Because the words are inaccurate, they are struck through.” I like what he affirmed, but I came there by a very different route.

That's a new quote to me. Anyone recognize where it is from?