Everyone has talent. What is rare is the courage to follow the talent to the dark place where it leads.
The answer to old age is to keep one's mind busy and to go on with one's life as if it were interminable. I always admired Chekhov for building a new house when he was dying of tuberculosis.
Investment is crucial. Because the truth is, you only get jobs and growth in the economy when people invest money, at their own risk, in setting up a business or expanding an existing business.