[I]t being reasonable and just, I should have a right to destroy that which threatens me with destruction: for by the fundamental law of nature, man being to be preserved as much as possible, when all cannot be preserved, the safety of the innocent is to be preferred: and one may destroy a man who makes war upon him, or has discovered an enmity to his being, for the same reason that he may kill a Wolf or a lion.
John LockeEducation begins the gentleman, but reading, good company, and reflection must finish him.
John LockeHe that uses his words loosely and unsteadily will either not be minded or not understood.
John Locke