The aim of argument, or of discussion, should not be victory but progress.
argumentquotes
No rational argument will have a rational effect on a man who does not want to adopt a rational attitude.
A rationalist, as I use the word, is a man who attempts to reach decisions by argument and perhaps, in certain cases, by compromise, rather than by violence. He is a man who would rather be unsuccessful in convincing another man by argument than successful in crushing him by force, by intimidation and threats, or even by persuasive propaganda.
The most perfidious way of harming a cause consists of defending it deliberately with faulty arguments.
In argument similes are like songs in love; they describe much, but prove nothing.
There is hardly a better way to avoid discussion than by releasing an argument from the control of the present and by saying that only the future will reveal its merits.