Laughter and tears are both responses to frustration and exhaustion. I myself prefer to laugh, since there is less cleaning up to do afterward.

"Thought exists to serve action, not merely to reflect reality."

To transform is to give new life.

Inflation is a very simple idea, but it explains a lot of things.

Keep your face always toward the sunshine, and shadows will fall behind you.

思想开阔，才能包容天下的千山万壑；思想谦虚，才能接受天下的真知大德；思想平明，才能纵论天下的善恶得失；思想深沉，才能讨论天下的学说哲理；思想稳定，才能应付天下的风云变幻。