Endeavour to be inclined always:
not to the easiest, but to the most difficult;
not to the most delightful, but to the most distasteful;
not to the most gratifying, but to the less pleasant;
not to what means rest for you, but to hard work;
not to the consoling, but to the unconsoling;
not to the most, but to the least;
not to the highest and most precious, but to the lowest and most despised;
not to wanting something but to wanting nothing.

Saint John of the Cross (1542 – 1591)