It is practice alone that brings the powers of the mind, as well as those of the body, to their perfection.
John LockeWho hath a prospect of the different state of perfect happiness or misery that attends all men after this life, depending on their behavior, the measures of good and evil that govern his choice are mightily changed.
John LockeNature never makes excellent things, for mean or no uses: and it is hardly to be conceived, that our infinitely wise Creator, should make so admirable a Faculty, as the power of Thinking, that Faculty which comes nearest the Excellency of his own incomprehensible Being, to be so idlely and uselesly employ'd, at least 1/4 part of its time here, as to think constantly, without remembering any of those Thoughts, without doing any good to it self or others, or being anyway useful to any other part of Creation.
John LockeHence it is a mistake to think, that the supreme or legislative power of any common-wealth, can do what it will, and dispose of the estates of the subject arbitrarily, or take any part of them at pleasure.
John Locke..every Man has a Property in his own Person. This no Body has any Right to but himself. The Labour of his Body, and the Work of his Hands, we may say, are properly his. .... The great and chief end therefore, of Mens uniting into Commonwealths, and putting themselves under Government, is the Preservation of their Property.
John Locke