Meditations by Marcus Aurelius Book 6 Page 26

for the purpose it was made for, it is as it should be though he perchance that made and fitted it, be out of sight and gone. But in things natural, that power which hath framed and fitted them, is and abideth within them still: for which reason she ought also the more to be respected, and we are the more obliged (if we may live and pass our time according to her purpose and intention) to think that all is well with us, and according to our own minds. After this manner also, and in this respect it is, that he that is all in all doth enjoy his happiness.

XXXVI. What things soever are not within the proper power and jurisdiction of thine own will either to compass or avoid, if thou shalt propose unto thyself any of those things as either good, or evil; it must needs be that according as thou shalt either fall into