"In many cases, what you hope to learn by reading books or listening to podcasts can only be learned by attempting what you fear. Some knowledge is only revealed through action."
Selfish people should listen to advice to be more selfless, selfless people should listen to advice to be more selfish. This applies to many things. Whenever you receive advice, consider its opposite as well. You might be filtering out the advice you need most.
"When one worldview dominates your thinking, you'll try to explain every problem you face through that worldview. Read widely and realize there are many answers."
Starting a company is awesome if you want to feel like a piece of shit one day and king of the universe next day and just keep alternating back and forth forever and ever