For filmmaker Karan Johar, `goodwill` is the `only property` where one should invest to reap `endless` returns.

He took to Twitter to share the philosophy that his late father taught him.

`My father always told me goodwill is the only property to invest in...the returns are endless,` Karan posted on the microblogging site Monday.

The filmmaker's projects have enjoyed a good run at the box office this year. He produced `Yeh Jawaani Hai Deewani` and presented `The Lunchbox`.