Count your age by friends, not years. Count your life by smiles, not tears.
John Lennon
I'm 40! maybe I can say I'm in the beginning of the second part of my life. if you consider first 15 years just a preparation for understanding life, a 40 year old guy has had the chance to experience life for 25 years.
I will use all I have learnt in past, to be HAPPY in the coming 25 years, if I'd be given the chance again, for another 25.
happiness is the only thing I believe you deserve to seek.