"それの代わりにあなたが費やす人生の量が何かの値段です"

Simplified Meaning:

Whenever you spend time or effort on something, you are giving up a part of your life. Imagine you have $10 and want to buy a book. To get that $10, you worked for an hour. So, the cost of the book is not just $10; it’s also one hour of your life. If you work longer or harder to buy more expensive things, you're trading more of your time and energy for them. Think about how you spend your time every day. If you hang out with friends or family, you're using your time to build relationships, which can make you happy. If you spend a lot of time at work, you're using your life to earn money. Everyone has a limited amount of time, so choose wisely what you do with it. It's a reminder to balance work, fun, and rest to make the most out of your life. Make sure that what you choose to spend your time on is worth the life you give up for it.