事
We should cultivate indifference to everything.
Happiness and unhappiness depend upon the opinion we have of things.
What appears good to one may appear evil to another， and vice versa.
The wise person does not dogmatically assert anything， not even that the wise person knows nothing.
In things indifferent， nothing is preferable to anything else.
We will laugh at the laughable， and will not be able to refrain from laughing.
Courage consists not in hazarding without fear； but being resolutely minded in a just cause.
Good means not merely not to do wrong， but rather not to desire to do wrong.
Man is the measure of all things.
Water is the principle of all things.
In language， there is no one-to-one correspondence between words and the things they refer to.
To do things with words is not a special kind of doing， but a special kind of speaking.
In saying that someone did something， we may be doing something ourselves.
We can say things with words； and we can do things with words.
We can talk about a happening in three main ways: by describing it， by recounting its history， by telling a story about it.
To say something is to perform an action， and to perform an action is to do something with words.
Words are not mere sounds or marks， but signs of facts.