Always remember this, Henri. Men trade for profit. They are driven by greed. But debt is about fear, and fear is stronger than greed. The true power, the weapon that defeats all others, is debt. Fools search for gold. The wise man studies debt. That is the key to all business.

Meaning: Someone's belief may have been produced by what they want to be true, rather than by good evidence that it is true.

Meaning: A request made at a higher level leaves room to reduce it later. The saying describes flexibility in an opening demand, while its advice needs limits: an inflated request can undermine trust or ignore what the other person can reasonably offer.

Meaning: An outward container does not establish the quality of what is inside. Look for evidence about the substance rather than relying on packaging, appearance or a reassuring presentation.

Meaning: The phrase rejects a claim as implausible, suggesting that the speaker feels someone is asking too much of their belief. A strong expression of doubt still needs reasons when the actual claim matters.