All men by nature desire to know. An indication of this is the delight we take in our senses; for even apart from their usefulness they are loved for themselves...
In everything, it is no easy task to find the middle.
It is possible to fail in many ways...while to succeed is possible only in one way.
All communication must lead to change
Moral qualities are so constituted as to be destroyed by excess and by deficiency . . .
To Unlearn is as hard as to Learn