"It would clearly not be an improvement to build all houses exactly alike in order to create a perfect market for houses, and the same is true of most other fields where differences between the individual products prevent competition from ever being perfect."

Next Quote

Previously I always thought it was just tactical and technique, but every match has become almost mental and physical - I try to push myself to move well. I try to push myself not to get upset and stay positive, and that's what my biggest improvement is over all those years. Under pressure I can see things very clear.

— Roger Federer