Man isn't a fool for his ignorance, but rather for believing things that are wrong.
Money will buy a pretty good dog, but it won't buy the wag of his tail.
It's not what we don't know that prevents us from succeeding; it's what we know that just ain't so that is our greatest obstacle.
Reason often makes mistakes, but conscience never does.
Seneca devoted much of his time to writing essays in praise of poverty, and in lending money at usurious rates.
When a man comes to me for advice, I find out the kind of advice he wants, and I give it to him.