A criminal who, having renounced reason ... hath, by the unjust violence and slaughter he hath committed upon one, declared war against all mankind, and therefore may be destroyed as a lion or tiger, one of those wild savage beasts with whom men can have no society nor security.
John LockeThe thoughts that come often unsought, and, as it were, drop into the mind, are commonly the most valuable of any we have.
John LockeMemory is the power to revive again in our minds those ideas which after imprinting have disappeared, or have been laid aside out of sight.
John LockeThere cannot any one moral rule be proposed whereof a man may not justly demand a reason.
John LockeA father would do well, as his son grows up, and is capable of it, to talk familiarly with him; nay, ask his advice, and consult with him about those things wherein he has any knowledge or understanding. By this, the father will gain two things, both of great moment. The sooner you treat him as a man, the sooner he will begin to be one; and if you admit him into serious discourses sometimes with you, you will insensibly raise his mind above the usual amusements of youth, and those trifling occupations which it is commonly wasted in.
John Locke