真正的力量不在于从不跌倒，而在于每次跌倒后都能站起来。
"True strength is not in never falling, but in rising every time we fall."
剪辑的魔力在于看不见的过渡。
"The serve is the most important shot in tennis."
The center of our galaxy is a fascinating place where extreme physics takes place, and it's a privilege to study it.