"Always follow these two rules: first, act only on what your reasoning mind proposes for the good of humanity, and second, change your opinion if someone shows you it's wrong. This change of mind must proceed only from the conviction that it's both correct and for the common good, but not because it will give you pleasure and make you popular."

Next Quote

As you know, in this democracy, in order to have a healthy democracy, we have to get to the common good. But the only way to get to the common good is if we have a common set of facts, which we don't seem to have today, and we have a common level of decency. And my problem with the president and what happened today and why I think it affects the country as a whole is, first, we bring up our kids better than this. We teach them not to do this. We tell them not to do this, and it is not the right standard of behavior.

— Matthew Dowd