First to second century CE

Epictetus — What is up to us is judgment and volition

Can we be free by governing assent to impressions even when external events are not ours to choose?

Evidence-backed account

Epictetus centers personal freedom on prohairesis, the capacity for volition, and the correct use of impressions.

Open evidence

This is an evidence-linked editorial paraphrase, not a direct quotation.

Epictetus
Stanford Encyclopedia of Philosophy
Locator: Introduction; §4.2 Prohairesis
Open source

His three areas of training include impulses to act, desire, and assent disciplined against deception and hasty judgment.

Open evidence

This is an evidence-linked editorial paraphrase, not a direct quotation.

Epictetus
Stanford Encyclopedia of Philosophy
Locator: §4.1 The Three Areas of Study
Open source