Have patience. Everything is difficult before it is easy.
Be not in the desire of thine own ease.
Now that another is suffering pain at thy hand, trust not that thy heart shall be exempt from affliction.
Whoever has his foe at his mercy, and does not kill him, is his own enemy
That sorrow which is the harbinger of joy is preferable to the joy which is followed by sorrow.
He, who learns and makes no use of his learning, is a beast of burden, with a load of books.