We have two ears and one mouth, so we should listen more than we say.

This saying — “We have two ears and one mouth, so we should listen more than we say.” — is attributed to Zeno of Citium (c. 334–262 BCE), the founder of Stoicism. While the exact wording is not preserved in surviving fragments of Zeno’s writings, the sentiment appears in ancient sources summarizing early Stoic teachings.

The earliest known record comes from Diogenes Laërtius, Lives of Eminent Philosophers (Book 7, Section 1), where he writes about Zeno’s views on discourse and restraint. Similar phrasing appears in later collections of classical wisdom and proverbs, reinforcing its association with Zeno and the Stoic emphasis on thoughtful listening over impulsive speech.

It’s a simple line, but it speaks volumes about the kind of wisdom Stoicism values: restraint, humility, and self-awareness. Zeno isn’t making a biological argument—he’s making a philosophical one. Talking is easy. Listening takes effort.

It means setting aside your ego, your need to be right, your habit of preparing your reply while the other person is still speaking. True listening is rare, and that’s exactly why it’s so powerful. In a world full of noise—opinions, arguments, advice—those who really listen stand out. They build trust. They understand nuance. They grow.

The Stoics believed that we should speak only when our words improve upon silence. That doesn’t mean silence is always better—but it does mean we should be thoughtful before we speak.

In your daily life, do you listen to understand—or to respond?

What might shift in your relationships, your work, or your learning if you let your ears lead more often than your mouth? Wisdom begins not with the voice, but with the ear.