The only time you should ever look back is to see how far you've come.
你唯一应该回头看的时候是看你已经走了多远。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
It’s not how you fall, it’s how you get back up.
Mental activity is always directed toward some end.
预测未来的唯一方法是创造未来。