Meditations 6.40

Every instrument, tool, vessel, if it does that for which it has been made, is well, and yet he who made it is not there. But in the things which are held together by nature there is within, and there abides in them the power which made them; wherefore the more is it fit to reverence this power, and to think, that, if thou dost live and act according to its will, everything in thee is in conformity to intelligence. And thus also in the universe the things which belong to it are in conformity to intelligence.

Marcus Aurelius, Meditations 6.40, translated by George Long

Every implement, tool, or vessel is well if it do the work for which it is made, and yet in their case the maker is not at hand. But in the things which owe their organic unity to Nature, the Power that made is within them and abides there. Wherefore also must thou reverence it the more, and realize that if thou keep and conduct thyself ever according to its will, all is to thy mind. So also to its mind are the things of the Universe.

Marcus Aurelius, Meditations 6.40, translated by C. R. Haines