Security used to be an inconvenience sometimes, but now it's a necessity all the time.
Martina NavratilovaVariety is what I would recommend: As variety is the spice of life in food, so it is in exercise. Change it up. But most of all, don't overdo it.
Martina NavratilovaThe mark of great sportsmen is not how good they are at their best, but how good they are their worst.
Martina Navratilova