We are all in the gutter, but some of us are looking at the stars.
我们都在阴沟里，但仍有人仰望星空。
The only way to discover the limits of the possible is to go beyond them into the impossible.
If you’re not moving forward, you’re falling behind.
The mind is an instrument of survival before it is an instrument of thought.
"The serve is the most important shot in tennis."