The greatest thing by far is to be a master of metaphor.
To be ignorant of motion is to be ignorant of nature
A state of the soul is either (1) an emotion, (2) a capacity, or (3) a disposition; virtue therefore must be one of these three things.
We must be neither cowardly nor rash but courageous.
...The entire preoccupation of the physicist is with things that contain within themselves a principle of movement and rest.
It is true, indeed, that the account Plato gives in 'Timaeus' is different from what he says in his so-called 'unwritten teachings.'