The self is not something ready-made, but something in continuous formation through choice of action.

I’ve had my best years after fifty. Age is just a number—it’s your attitude that counts. 

You see things; and you say, 'Why?' But I dream things that never were; and I say, 'Why not?'

【译文】 孔子说：“年轻人值得敬佩，怎知后代不如今人？四五十岁还默默无闻的人，就没什么前程了。”