"Always do what you are afraid to do."
- Ralph Waldo Emerson
"Fortune favors the brave."
- Publius Terence
"Do unto others as you would have them do unto you."
- Jesus
"Enjoy yourself--it's later than you think."
- Guy Lombardo
"You cannot plough a field by turning it over in your mind."
- Unknown
"Nothing great was ever achieved without enthusiasm."
- Ralph Waldo Emerson
And then go out an put it into practice.
Here's mine:
"Be the change you wish to see in the world."
- Gandhi