[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 LockeReason, if consulted with, would advise, that their children's time should be spent in acquiring what might be useful to them when they come to be men, rather than to have their heads stuff'd with a deal of trash, a great part whereof they usually never do ('tis certain they never need to) think on again as long as they live: and so much of it as does stick by them they are only the worse for.
John LockeWhen the sacredness of property is talked of, it should be remembered that any such sacredness does not belong in the same degree to landed property.
John LockeIt is one thing to persuade, another to command; one thing to press with arguments, another with penalties.
John LockeThere cannot any one moral rule be proposed whereof a man may not justly demand a reason. Every man has a property in his own person. This nobody has any right to but himself. The people cannot delegate to government the power to do anything which would be unlawful for them to do themselves.
John Locke