Survival can be summed up in three words – never give up. That’s the heart of it really. Just keep trying.
When you do something best in life, you don’t really want to give that up – and for me it’s tennis.
The human being cannot live in a condition of emptiness for very long: if he is not growing toward something, he does not merely stagnate; the pent-up potentialities turn into morbidity and despair, and eventually into destructive activities.