In difficult and desperate cases, the boldest counsels are the safest. Livy
One cool judgment is worth a thousand hasty counsels. The thing to do is to supply light and not heat. Woodrow Wilson
The man who does evil to another does evil to himself, and the evil counsel is most evil for him who counsels it. Hesiod
Well goes the case when wisdom counsels. English Proverb
Other times, other counsels. Portuguese Proverb
He who counsels himself, counsels a fool. Confucian Proverb