Mark Zuckerberg: 'The biggest risk is not taking any risk... In a world that is changing really quickly, the only strategy that is guaranteed to fail is not taking risks.'
Don't be afraid of risks

If you want to achieve anything in your life, you must jump from a comfortable position to an uncomfortable position
The regret of not taking a risk is enormous
You are going to regret your entire life if you don't take risks
Taking risks is scary and should be, but not taking risks is even scarier