Take charge of your thoughts. You can do what you will with them
For the rhapsode ought to interpret the mind of the poet to his hearers, but how can he interpret him well unless he knows what he means?
I will prove by my life that my critics are liars.
The object of knowledge is what exists and its function to know about reality.
If we are to have any hope for the future, those who have lanterns must pass them on to others.
The flute is not an instrument that has a good moral effect - it is too exciting.