A good friend of my heart,

Assertiveness is cruelty to ignore all the possibilities but good.

because,
...
People who are not firm, has been cruel to let the evil force becomes stronger than good.

That is why,

Better to pass for cruel as to promote the good, rather than loving but mistaken hide dishonesty.

... wow, how much we love the powerful and ruthless force to promote the good, rather than a weak but are actually more cruel lack of honesty.