False facts are highly injurious to the progress of science, for they often endure long but false views, if supported by some evidence, do little harm, for every one takes a salutary pleasure in proving their falseness. – Charles Darwin
A mans friendships are one of the best measures of his worth. – Charles Darwin
To kill an error is as good a service as, and sometimes even better than, the establishing of a new truth or fact. – Charles Darwin
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. – Charles Darwin