The smile of the wise is the smile of freedom. What the wise one has understood has freed him from the burdens of existence and elevated him to regions where an eternal sun shines. And this wisdom, which he has acquired at the cost of much effort, is what he wishes to pass on to those who live with him or come to him; this is the only desire of the wise. But how much time is needed to convey to others what one has understood oneself! Therefore, the only thing the wise can immediately impart is the joy he derives from this wisdom, this joy that fills his heart, that wells up from his heart, and the smile is the expression of this joy, which can also be called love.