All things are in the act of change; thou thyself in ceaseless transformation and partial decay, and the whole universe with thee.

If I and my two children cannot move the gods, the gods must have their reasons.

Purge your mind of all aimless and idle thoughts, especially those that pry into the affairs of others or wish them ill.

Men are born for each other's sake, so either teach people or endure them

But this is altogether a mark of the most common sort of men, for it is in your power whenever you choose to retire into yourself.

How easy it is to repel and release every impression which is troublesome and immediately to be tranquil.

The happiness of those who want to be popular depends on others; the happiness of those who seek pleasure fluctuates with moods outside their control; but the happiness of the wise grows out of their own free acts.