About this quote

The line drives home how other people's bitterness can seep into your behavior if you stay exposed. Notice when a harsh attitude begins to change you, then act: set boundaries, limit exposure, and refuse to mirror their tone. Owning that responsibility is uncomfortable but necessary—awareness plus small consistent choices breaks the cycle.

When to use it

• When a coworker's constant sarcasm starts making you bitter, name it, step back, and refuse to match their tone.
• If a partner's coldness rubs off and you find yourself snapping, stop, identify the contagion, and choose a different response.
• After a heated meeting, check whether your irritation came from the room or from your own patterns; take responsibility and reset.
• When a leader's negativity drags team morale down, address the behavior or remove the influence rather than pretending it's isolated.