Betray a friend, and you'll often find you have ruined yourself.
An oak and a reed were arguing about their strength. When a strong wind came up, the reed avoided being uprooted by bending and leaning with the gusts of wind. But the oak stood firm and was torn up by the roots.
Good things come in small packages.
It is one thing to conceive a good plan, and another to execute it
Obscurity brings safety.
If you are wise you won't be deceived by the innocent airs of those whom you have once found to be dangerous.