Meditations 11.9

“It is not possible that any nature should be inferior unto art, since that all arts imitate nature. If this be so; that the most perfect and general nature of all natures should in her operation come short of the skill of arts, is most improbable. Now common is it to all arts, to make that which is worse for the better's sake. Much more then doth the common nature do the same. Hence is the first ground of justice. From justice all other virtues have their existence. For justice cannot be preserved, if either we settle our minds and affections upon worldly things; or be apt to be deceived, or rash, and inconstant.”