#Certainty

"I believe that we do not know anything for certain, but everything probably."

"In our reasonings concerning matter of fact, there are all imaginable degrees of assurance, from the highest certainty to the lowest species of moral evidence. A wise man, therefore, proportions his belief to the evidence."

"It's not about whether or not someone is a bigot, but whether or not the argument which that someone is arguing is worth being a bigot about."

"Peaceful disputes are maintained when men sincerely believe that they are morally, logically correct about the issues at hand. It is when neither side is really certain that wars are instigated."

"If a man will begin with certainties, he shall end in doubts; but if he will be content to begin with doubts, he shall end in certainties."