Accurate reading on a wide ...

Accurate reading on a wide range of subjects makes the scholar; careful selection of the better makes the saint.
 John of Salisbury

Quotes from the same author

A man is free in proportion to the measure of his virtues, and the extent to which he is free determines what his virtues can accomplish.
 John of Salisbury
Between a tyrant and a prince there is this single or chief difference, that the latter obeys the law and rules the people by its dictates, accounting himself as but their servant.
 John of Salisbury