He has hay upon his horn. [He is a mischievous person.]
Virtue lies half way between two opposite vices.
You will have written exceptionally well if, by skilful arrangement of your words, you have made an ordinary one seem original.
Joking apart, now let us be serious.
Where there are many beauties in a poem I shall not cavil at a few faults proceeding either from negligence or from the imperfection of our nature.
You are judged of by what you possess.