A real or pretended indifference to pleasure or pain; insensibility; impassiveness.
A school of philosophy popularized during the Roman Empire that emphasized reason as a means of understanding the natural state of things, or logos, and as a means of freeing oneself from emotional distress.
The allowance of something not explicitly approved; tolerance, forbearance.
Specifically, the allowance by a government (or other ruling power) of the exercise of religion beyond the state established faith.