“I could go and buy one of the islands in theBahamas and turn it into my personal fiefdom, but I am much more interested in trying to build andcreate a new company.”

“It is important to view knowledge as sort of a semantic tree -- make sure you understand the fundamental principles, ie the trunk and big branches, before you get into the leaves/details or there i...”

“I think its important to reason from first principles rather than by analogy. The normal way we conduct our lives is we reason by analogy. [With analogy] we are doing this because its like somethin...”

“I'm not trying to be anyone's savior. I just try to think about the future and not be sad”

“You need to live in a dome initially, but over time you could terraform Mars to look like Earth and eventually walk around outside without anything on... So it's a fixer-upper of a planet.”

“My proceeds from the PayPal acquisition were $180 million. I put $100 million in SpaceX, $70m in Tesla, and $10m in Solar City. I had to borrow money for rent.”

“Lost Time is never found again.”

“How you spend your time is more important than how you spend your money. Money mistakes can be corrected, but time is gone forever.”

“Men talk of killing time, while time quietly kills them.”

“Just as in the body, eye and ear develop as organs of perception, as senses for bodily processes, so does a man develop in himself soul and spiritual organs of perception through which the soul and...”

“The most perfidious way of harming a cause consists of defending it deliberately with faulty arguments.”

“An ordinary mirror is silvered at the back but the window of the night train has darkness behind the glass. My face and the faces of other travellers were now mirrored on this darkness in a success...”

“Romance is the deepest thing in life. It is deeper than reality.”

“when you're a kid, they tell you that it's what's on the inside that counts. Looks don't matter . But that's not true. Guys like Phoebus in The Hunchback, or Dorian, or the old Kyle Kingsbury-- the...”

“Every concept of reality is all in our head, belief is what makes truth.”