"La connaissance sans expérience n'est que des foutaises"

Simplified Meaning:

Imagine you read a lot about riding a bicycle, learn all the rules, and even watch videos of people riding. However, if you never actually get on a bike and try it yourself, all that reading won't really make you a good rider. This quote is saying that just knowing things isn't enough—you need to experience them in real life to truly understand and be good at them. For example, a chef who has only studied recipes in books but never cooked won't know how to adjust flavors or handle the pressure of a busy kitchen. To apply this to your life, whenever you learn something new, make sure to practice it. If you want to get better at speaking a new language, don’t just study the grammar; go out and have conversations with native speakers. Real experience makes your knowledge valuable and real.