People who cannot find time for recreation are obliged sooner or later to find time for illness.

Success only comes through preparation.

The world is full of people whose notion of a satisfactory future is, in fact, a return to the idealised past.

Progress is not inevitable; it is the result of deliberate choices and actions.

The task of economics is not only to interpret phenomena, but also to provide practical advice and policies for society.

我的过去不能定义我，它使我更完善。