On Control

Receive without pride, let go without attachment.

— Marcus Aurelius

Meditations 8.33

Consider that everything is opinion, and opinion is in thy power.

— Marcus Aurelius

Meditations 12.22

No one confines his unhappiness to the present.

— Seneca

Letters 5.8

Nothing is so wretched or foolish as to anticipate misfortunes. What madness is it to be expecting evil before it comes.

— Seneca

Letters 13.4

To make the best of what is in our power, and take the rest as it occurs.

— Epictetus

Discourses 1.1

We are disturbed not by things, but by the views we take of them.

— Epictetus

Enchiridion 5

You always own the option of having no opinion. There is never any need to get worked up or to trouble your soul about things you can't control.

— Marcus Aurelius

Meditations 6.52

Enjoy present pleasures in such a way as not to injure future ones.

— Seneca

Letters 27.2

Do not ask for what you will wish you had not got.

— Epictetus

Fragments, in Stobaeus 1.22

Nothing is so obstinate as its opposite — moderation.

— Cato the Younger

Attributed via Plutarch, Sayings