"La personne qui tente de voyager sur deux routes à la fois n'arrivera nulle part."

Simplified Meaning:

Trying to do two things at the same time often leads to failure. Imagine if you are at a road junction and you want to take both paths. It is impossible to walk down two roads at once, so you will just stand still and not move forward. In life, this means if you divide your attention and efforts between too many tasks, you will struggle to complete any of them well. For instance, if a student tries to focus on studying two completely different subjects at the same time, like math and history, their attention will be split, and they may end up confused and learning less of both. Instead, focusing on one subject at a time can help them understand and remember better. In everyday life, prioritizing and dedicating yourself to one goal or project at a time can lead to more success and satisfaction. By putting all your effort into one thing, you are more likely to achieve your goals and make clear progress.