However, they both work hand in hand in order to achieve a desire dream or goal. The reason why most people don't grow or improve in life is lack of understanding, they might have the knowledge but they don't know how to apply that knowledge. Sometimes, one of the reason why we lost money and some other valuable things in crypto or some other investment is lack of understanding, even the Bible said that above all, we should get understanding.
However, taking this forum as an example, you will notice that of all the people who are generally respected today, they all have got something valuable to offer to the forum. Hence, success is the product of your ability to offer value where it's needed most.
Failure to take action on what you understand and have knowledge about is a great issue that can hinder ones growth and success just as earlier been said. Alot of ideas has died in so many individual because of failure to take actions. Well, not taking action may occur due to fear of losing out but we just have to understand that in most cases a trail is always needed to help improve and still learn more in life. We should always put in mind that the more we lose the more we are close to are success.