So quotable

Li Na, the first Asian to win a Grand Slam singles title in tennis, announced her retirement from the sport on Friday. Known also for her wit, her wisdom and her pithy one-liners, below are a selection from her years on the tennis circuit:

On her strong work ethic:

"I think many young players don't know about working, they can get whatever they want. They think 'I need a phone, I need a computer.' The family just gives it to them. They don't need to do something to get it. After my father died, my mom had to take care of everything. It was tough for her. I learned a lot from her about working hard for everything."