I am lucky to have had an attentive, curious and loving dad and heart-smart, down-to-earth, gifted mother. They changed the outlooks of their own lives and have never forgotten the people and organizations that helped them dream bigger than their circumstances should have allowed.
There are plenty of good five cent cigars in the country. The trouble is they cost a quarter.
What convinces is conviction. Believe in the argument you're advancing. If you don't you're as good as dead. The other person will sense that something isn't there, and no chain of reasoning, no matter how logical or elegant or brilliant, will win your case for you.

