1. we have already pointed out to you that this is a creationist lie and misrepresentation. Why do you keep repeating this falsehood?
2. it doesn't matter either way. Einstein for example, didn't only have doubts about his theories,
he actively believed he had to be wrong, because he thought the idea of quantum physics and black holes was absurd. He called some of his findings "his greatest blunder". And then years later, black holes were discovered and his theories were validated.
You should really learn that there are no ultimate authorities in science. There are no "infallible" scientists and in fact individuals do not matter. Evidence matters.
You're clearly projecting your irrational religious standards of "ultimate authority" and "infallibility" on the rational enterprise of science. Science doesn't work that way. The sooner your realize that, the better. It will make sure you will cease to say such ignorant things and make such silly "arguments".
Darwin, the person, and his beliefs don't matter.
Newton, the person, and his beliefs don't matter.
Einstein, the person, and his beliefs don't matter.
Their theories and the
evidence in support them - that's what matters.
Take Newton for example. Arguably one of the most intelligent men that ever lived. But did you know that the work in physics that made him famous, was actually more of a footnote in the greater scheme of his life? The bulk of his writings was actually about alchemy. Pseudo scientific nonsense. If it wasn't for his work in physics, nobody would know him today.
Ow, goody........ another creationist who thinks that the label "theory" in science means "just a guess".
Evolution is Not Just a Theory: home
Please read the above page. It's only 15-ish sentences and it will clear up your confusion concerning scientific jargon.
Having said that, as said earlier: Darwin, the person, and his beliefs don't matter.
And misrepresentations / lies about his beliefs, matter even less.
Read the rest of the chapter that immediately follows the part you (or your source) quote mined. You'll see that he goes on the explain possible pathways by which eyes evolved.
Again I have to ask: if you are so confident about evolution being false, then why do you (or your sources) have a need to lie about it?