Relying on a single deal to get rich is a sign of insecurity; it means you've lost too much and hope for a rise just once!
I rely on accumulating little by little; I don't mind a small amount, and I don't mind having many small amounts. I want as much as I can get, and I never hope for instant wealth, but rather I want to accumulate!
The Jewish business mindset is to earn even a single dollar; continuously making money is how to gather both big and small amounts.
Those who think a single dollar is too little will never encounter the opportunity for instant wealth.