There is no mortal truly wise and restless at once; wisdom is the repose of minds.

An unsettled mind is not yet finished thinking. Usually something is unresolved: a decision half made, a fear not looked at, a question you keep circling rather than answering. What people call wisdom is often just the quiet that follows once those have been dealt with, which is why wise people seem unhurried rather than clever.

Instead of trying to calm yourself, find out what the agitation is about. Write down the unresolved thing, decide the next step on it, and notice how much of the restlessness was simply an unanswered question.