You may break your heart, but men will still go on as before. Book VIII

The effect of speech upon the condition of the soul is comparable to the power of drugs over the nature of bodies. For just as different drugs dispel different secretions from the body, and some bring an end to disease and others to life, so also in the case of speeches, some distress, others delight, some cause fear, others make the hearers bold, and some drug and bewitch the soul with a kind of evil persuasion. Gorgias

There is a virtue, Simmias, which is named courage. Is not that a special attribute of the philosopher? ...Again, there is temperance. Is not the calm, and control, and disdain of the passions which even the many call temperance, a quality belonging only to those who despise the body and live in philosophy? The Trials Of Socrates

There is nothing either good or bad, but thinking makes it so. Hamlet