अत्युच्चैरतिनीचैर् अश्लीलमयुक्तमनुपयुक्तं च।
न वदति नृपतिसभाया- मादरमीप्सुर्महामनसाम्॥
The wise in royal courts do not speak extremely high, low, inappropriate, or unfit words—they speak with restraint.