Meditations 7.5

Is my understanding sufficient for this or not? If it is sufficient, I use it for the work as an instrument given by the universal nature. But if it is not sufficient, then either I retire from the work and give way to him who is able to do it better, unless there be some reason why I ought not to do so; or I do it as well as I can, taking to help me the man who with the aid of my ruling principle can do what is now fit and useful for the general good. For what-soever either by myself or with another I can do, ought to be directed to this only, to that which is useful and well suited to society.

Marcus Aurelius, Meditations 7.5, translated by George Long

Is my mind competent for this or not? If competent, I apply it to the task as an instrument given me by the Universal Nature. If not competent, I either withdraw from the work in favour of someone who can accomplish it better, unless for other reasons duty forbids; or I do the best I can, taking to assist me any one that can utilize my ruling Reason to effect what is at the moment seasonable and useful for the common welfare. For in whatsoever I do either by myself or with another I must direct my energies to this alone, that it shall conduce to the common interest and be in harmony with it.

Marcus Aurelius, Meditations 7.5, translated by C. R. Haines