Power to do good is the true and lawful act of aspiring; for good thoughts (though God accept them), yet towards men are little better than good dreams, except they be put in act; and that cannot be without power and place, as the vantage and commanding ground.
John LockeSome eyes want spectacles to see things clearly and distinctly: but let not those that use them therefore say nobody can see clearly without them.
John LockeAnd thus the community perpetually retains a supreme power of saving themselves from the attempts and designs of anybody, even of their legislators, whenever they shall be so foolish, or so wicked, as to lay and carry on designs against the liberties and properties of the subject.
John LockeVague and mysterious forms of speech, and abuse of language, have so long passed for mysteries of science; and hard or misapplied words with little or no meaning have, by prescription, such a right to be mistaken for deep learning and height of speculation, that it will not be easy to persuade either those who speak or those who hear them, that they are but the covers of ignorance and hindrance of true knowledge.
John Locke