As an exercise of the reasoning faculties, pure mathematics is an admirable exercise, because it consists of reasoning alone and does not encumber the student with any exercise of judgment.
Richard WhatelyOne way in which fools succeed where wise men fail is that through ignorance of the danger they sometimes go coolly about a hazardous business.
Richard WhatelyThe attendant on William Rufus, who discharged at a deer an arrow, which glanced against a tree and killed the king, was no murderer, because he had no such design. And, on the other hand, a man who should lie in wait to assassinate another, and pull the trigger of a gun with that intent, would be morally a murderer, not the less though the gun should chance to miss fire.
Richard Whately