Meditations 10.12

What need is there of suspicious fear, since it is in thy power to inquire what ought to be done? And if thou seest clear, go by this way content, without turning back; but if thou dost not see clear, stop and take the best advisers. But if any other things oppose thee, go on according to thy powers with due consideration, keeping to that which appears to be just. For it is best to reach this object, and if thou dost fail, let thy failure be in attempting this. He who follows reason in all things is both tranquil and active at the same time, and also cheerful and collected.

Marcus Aurelius, Meditations 10.12, translated by George Long

What need of surmise when it lies with thee to decide what should be done, and if thou canst see thy course, to take it with a good grace and not turn aside; but if thou canst not see it, to hold back and take counsel of the best counsellors and if any other obstacles arise therein, to go forward as thy present means shall allow with careful deliberation holding to what is clearly just? For to succeed in this is the best thing of all, since in fact to fail in this would be the only failure.

Leisurely without being lethargic and cheerful as well as composed shall he be who follows Reason in everything.

Marcus Aurelius, Meditations 10.12, translated by C. R. Haines