Quote by Charles Darwin
It has often and confidently been asserted, that man's origin can never be known: but ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.
Summary
This quote suggests that people who are less knowledgeable in a subject often tend to express more confidence and make absolute claims about what can or cannot be known. The speaker is critiquing the tendency for ignorance to breed unwarranted certainty while arguing that those who possess limited knowledge are more likely to assert that certain scientific problems are unsolvable. The quote implies that it is important to remain humble and open to the possibility of new knowledge and scientific breakthroughs, rather than dismissing them due to a lack of understanding.