It is lawful to be taught by an enemy. Fas est ab hoste doceri.
Endure and persist; this pain will turn to good by and by.
What is more useful than fire? Yet if any one prepares to burn a house, it is with fire that he arms his daring hands.
Remove the temptation of idleness and Cupid's bow is useless.
The love of fame puts spurs to the mind
No man provokes me with impunity.