生活中唯一的限制是你自己设定的。
Mathematics is the key to unlocking the secrets of the universe and understanding the fundamental laws that govern it.
"The true measure of success is how you handle failure."
There is nothing permanent except change.
To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things, every single day.