Where the hand of tyranny is long we do not see the lips of men open with laughter.
To him who is stinted of food a boiled turnip will relish like a roast fowl.
The wise man tells not what he knows. It is not prudent to sport with one's head by revealing the king's secrets.
The stranger has no friend, unless it be a stranger.
Reveal not every secret you have to a friend, for how can you tell but that friend may hereafter become and enemy. And bring not all mischief you are able to upon an enemy, for he may one day become your friend.
Now that another is suffering pain at thy hand, trust not that thy heart shall be exempt from affliction.