"Ce n'est pas parce que c'est une bonne idée que ça va marcher."

Simplified Meaning:

Sometimes, even the best ideas can fail. Imagine a person who invents a car that runs on water. It sounds amazing and could change the world. But if the car is too expensive to make, or water is too difficult to use as fuel, people might not buy it. This shows that good ideas also need to be practical and able to succeed in real life. Think about early internet companies in the 1990s. Many had excellent ideas to connect people or sell products online. However, a lot of them went out of business because they couldn't make money or didn't have the technology at that time. An idea needs more than just being great; it has to be realistic, useful, and timely to work. To apply this wisdom, consider every part of your plan before starting something new. Ask yourself: is it doable? Can people use it easily? Will it be too costly or hard to produce? Answering these questions can help you figure out if your idea has a real chance to succeed.