Elon Musk trumpets his skills, touts dogecoin over bitcoin, and defends his Twitter habit in 2 new interviews. Here are the 15 best quotes.

• Elon Musk championed dogecoin over bitcoin and defended his colorful tweets.
• The Tesla and SpaceX CEO crowed about his abilities and shared his vision for a Mars colony.
• The world’s richest person praised Warren Buffett’s investing skills and value to the economy.

Elon Musk trumpeted his own abilities, touted dogecoin over bitcoin, and defended his controversial Twitter habit in interviews with Time and the Financial Times, which both named him as their “Person of the Year” this week.

The Tesla and SpaceX CEO — the world’s richest person, with an estimated $250 billion fortune — also outlined his vision for a Mars colony and unexpectedly praised Warren Buffett.

Here are Musk’s 15 best tweets from the two interviews, lightly edited and condensed for clarity:

1. “How have Tesla and SpaceX succeeded when other companies have far more resources and money than I do? The problem is they can’t hire me.”

2. “I am very good at technology and engineering. Everyone’s got their talents, that’s one of mine. I can’t sing or dance, but I can do that.”

3. “I don’t think there’s a lot of people who would actually want to trade places.” — noting that he works 80-to-90 hours a week and doesn’t own a house or boat or take any vacations.

4. “No one has ever made a fully reusable orbital rocket of any kind whatsoever. We just live on a planet where this is an extremely difficult job. If this was a video game, the setting is on ‘maximum’ but not ‘impossible.'”

5. “The next really big thing is to build a self-sustaining city on Mars and bring the animals and creatures of Earth there. Sort of like a futuristic Noah’s ark. We’ll bring more than two, though—it’s a little weird if there’s only two.”

6. “I’ll be surprised if we’re not landing on Mars within five years.”

7. “We did Tesla essentially out of desperation — not because we thought it would be lucrative, but just to show that it could be done.”

8. “Bitcoin may be a store of value, but it is…