The partisan, when he is engaged in a dispute, cares nothing about the rights of the question, but is anxious only to convince his hearers of his own assertions. - Plato
The reserve of modern assertions is sometimes pushed to extremes, in which the fear of being contradicted leads the writer to strip himself of almost all sense and meaning. - Sir Winston Churchill
I never trust people's assertions, I always judge of them by their actions. - Ann Radcliffe
While having one’s assertions challenged might be bad for an unintelligent man’s ego; it sure is good for his intellect. - Mokokoma Mokhonoana