I think the first wisdom is to restrain the tongue.
For some people there is no comfort without pain. Thus; we define salvation through suffering. Hence, why we choose people who we know aren't right for ourselves.
I will begin to speak, when I have that to say which had not better be unsaid.
Don't promise twice what you can do at once.
A honest man is seldom a vagrant.
Consider it the greatest of all virtues to restrain the tongue.